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Perfect (grammar)

The perfect is a verb form that indicates that an action or circumstance occurred earlier than the time under consideration, often focusing attention on the resulting state rather than on the occurrence itself. An example of a perfect construction is I have made dinner: although this gives information about a prior action (my making the dinner), the focus is likely to be on the present consequences of that action (the fact that the dinner is now ready). The word perfect in this sense means "completed" (from Latin perfectus, which is the perfect passive participle of the verb perficere "to finish").

In traditional grammar, particularly with regard to Latin and Ancient Greek, the perfect is a particular conjugated verb form, traditionally considered to be one of the tenses. In modern analysis it is seen as combining the expression of tense (time reference) with aspectual information. The Greek perfect contrasted with the aorist and the imperfect, and thus referred to completed events with present consequences like the English "have/has (done something)". The Latin perfect contrasted only with the imperfect (used for past incomplete actions or states), and was thus used to mean both "have/has done something" and "did something" (the preterite use). Other related forms are the pluperfect, denoting an event prior to a past time of reference, and the future perfect, for an event prior to a future time of reference.

In modern grammars, particularly of English, perfect denotes an aspect independent of tense – the form corresponding to the traditional perfect ("I have done") is then called the present perfect, while that corresponding to the pluperfect ("I had done") is called the past perfect. (There are also additional forms such as future perfect, conditional perfect, and so on). The formation of perfect constructions as found in English, using forms of an auxiliary verb (have) together with the past participle of the main verb, is paralleled in a number of other modern European languages.

Perfect can be denoted by the glossing abbreviation PERF or PRF. It should not be confused with the perfective aspect, which refers to the viewing of an action as a single (but not necessarily prior) event. To avoid confusion with the perfective, the perfect is occasionally called the retrospective (RET).

Perfect as an aspect

In some analyses, perfect is identified as one of the grammatical aspects. In the perfect aspect, the event being referred to is viewed as already completed at the time of reference.[1] It should not be confused with the perfective aspect,[2][3] which marks a situation as a single event without internal structure, and does not imply prior occurrence as the perfect aspect does. The perfect also contrasts with the prospective aspect, which encodes the present relevance or anticipation of a future event. While the perfect is a relatively uniform category cross-linguistically, its relation to the experiential and resultative aspects is complex – the latter two are not simply restricted cases of the perfect.[4]

The perfect is not necessarily incompatible with other grammatical aspects. In English, for example, it can be combined with the progressive (continuous) aspect, wherein an event is viewed as temporary and ongoing. A form such as the present perfect progressive I have been working combines the meanings expressed by the two aspects – viewing my working as an ongoing process, but one which is now completed (or, as in I have been working for two hours, restricting attention to the completed portion of that process).

If perfect is viewed as an aspect, then the verb forms traditionally called just "perfect" (as in Greek or – in appropriate contexts – in Latin) in fact combine the perfect aspect with present tense (the event occurred prior to the time of speech). The pluperfect and future perfect forms combine perfect aspect with past and future tense respectively. This analysis is reflected more explicitly in the terminology commonly used in modern English grammars, which refer to present perfect, past perfect and future perfect (as well as some other constructions such as conditional perfect).

However not all uses of "perfect" verb forms necessarily express this "perfect aspect" – sometimes they are simply used as expressions of past tense, that is, as preterites. This applies to some uses of the Latin perfect, and also (for example) to the modern German Perfekt. For more details on the meanings of perfects in various languages, see the following sections.

Perfect constructions with auxiliaries

A number of modern European languages exhibit a parallel type of perfect (or perfect-like) construction, formed with an auxiliary verb in combination with the past participle of the main verb. The auxiliary may be a verb meaning have (as in the English I have won) or a verb meaning be (as in the French je suis arrivé, "I (have) arrived", literally "I am arrived").

The have-perfect developed from a construction where the verb meaning have denoted possession, and the past participle was an adjective modifying the object, as in I have the work done.[citation needed] This came to be reanalyzed, with the object becoming the object of the main verb, and the participle becoming a dependent of the have verb, as in I have done the work. The construction could then be generalized to be used also with intransitive verbs. A vestige of the original interpretation is preserved in some languages in the form of inflection on the participle to agree with the gender and number of the object.

The be-perfect developed similarly, from a construction where the verb meaning be was an ordinary copula and the participle expressed a resultative state of the subject.[5] It is consequently used mostly with verbs that denote a change in the state or location of the subject, and in some languages the participle inflects to agree with the gender and number of the subject.

Languages which use these constructions can generally inflect the auxiliary to produce different verb forms for the perfect aspect: the pluperfect or past perfect is produced with the auxiliary in the past tense, the future perfect with the auxiliary in the future tense, and so on. These include non-finite forms such as perfect infinitives. (More possible forms and examples are given under English below.)

The basic (present) perfect form, with the auxiliary in the present tense, may specifically carry the meaning of perfect aspect, as in English; however in some languages it is used more generally as a past tense (or preterite), as in French and German.

The use of auxiliaries and meaning of the constructions in various languages are described below.

  • English uses have as the auxiliary; the use of be with some intransitive verbs (as in I am come; he is gone) is archaic. For more details see the section on English below.
  • German uses haben ("have") as the auxiliary with most verbs, and sein ("be") with some intransitives, including the copula sein itself. The German "present perfect" construction is called the Perfekt (perfect), and for most verbs is the usual past tense. For details see German verbs. Other Germanic languages have similar constructions, such as the perfekt of Swedish and the perfectum (compound past) of Dutch.
  • French uses avoir ("have") as the auxiliary with most verbs, but uses être ("be") with reflexive verbs and with a certain number of intransitive verbs. The past participle is inflected to agree in gender and number with the subject when être is used, and with a direct object when avoir is used, but then only when the object precedes the verb (which is normally the case with personal pronouns and in some relative and interrogative clauses). The construction with "present perfect" form is called the passé composé (compound past), and is the usual past tense for completed events, corresponding to both the English present perfect and to the simple past. For more details see passé composé.
  • Italian uses avere ("have") and essere ("be") as auxiliaries, distributed in much the same way as avoir and être in French. The participle agrees with the subject when essere is used, and with a preceding pronoun direct object when avere is used. The present perfect is often used also for completed events where English would use the simple past. For details see Italian grammar.
  • Spanish uses haber ("have") as the auxiliary with all verbs. The "present perfect" form is called the pretérito perfecto, and is used similarly to the English present perfect. See Spanish verbs.
  • Portuguese uses ter or haver (both meaning "have") as the auxiliary. In modern speech ter is more common. See Portuguese grammar.

Celtic languages have a somewhat different type of perfect construction, where a word meaning "after" is used together with a verbal noun. This is described under Welsh grammar and Irish conjugation. By analogy with this construction, sentences of the form I'm after eating (meaning "I have eaten") are used in Irish English.

Perfect in particular languages


In reconstructions of the Proto-Indo-European language (PIE), the verb form that has traditionally been called "perfect" in fact signified stative aspect (a current state of being). The name was assigned based on similarity to the Greek or Latin perfect tense, before the stative nature of the form was fully recognized. For details of its formation, see Proto-Indo-European verbs.

Ancient Greek

The Ancient Greek perfect developed from the PIE perfect (stative) form; in both cases the stem is typically formed by reduplication. In Greek, however, it took on a true "perfect" meaning, indicating an action with a permanent result.[6] The effect of the action is seen in the resulting state; this state may belong to either the subject or the object.[7] The meaning is therefore similar to the English present perfect, although usage of the Greek perfect is somewhat narrower than in English. Greek also has a pluperfect and a (compound) future perfect, although their use is rare.

Other verb forms used in Ancient Greek to refer to past circumstances were the aorist, which was used simply to report past events (for example in narrative), and the imperfect.

For details of the formation and use of the Greek perfect, see Ancient Greek verbs (see also Ancient Greek grammar: Dependence of moods and tenses). For the (compound) perfect found in modern Greek, see Modern Greek verbs.


In Latin the PIE aorist merged with the perfect.[8] Consequently the Latin perfect tense serves both as a true perfect (meaning, for example, I have done), and as a simple preterite, merely reporting a past event (I did). It contrasts with the imperfect, which denotes uncompleted past actions or states.

Latin also has pluperfect and future perfect forms. For details of how all of these forms are made, see Latin conjugation.


In English, the perfect is made with a form of the auxiliary verb have together with the past participle of the main verb. The auxiliary can be modified for tense and mood, and can also appear in non-finite forms (infinitive, participle or gerund), thus giving rise to a number of constructions which combine perfect aspect with other verbal properties:

  • I have eaten; he has eaten (present perfect, generally denoting something that took place prior to the present moment)
  • I had eaten (past perfect, something that took place prior to a moment in the past)
  • I will have eaten (future perfect, something to take place prior to a moment in the future)
  • I would have eaten (conditional perfect, something conceived as taking place in hypothetical past circumstances)
  • ...that he have eaten... (present perfect subjunctive, a rarely used form; see English subjunctive)
  • (to) have eaten (perfect infinitive)
  • having eaten (perfect gerund or participle)

The perfect can also be combined with another aspect[9] that is marked in English – the progressive (or continuous) aspect. In perfect progressive (or perfect continuous) constructions, the perfect auxiliary (a form of have) is followed by the past participle been (from be, the auxiliary of the progressive aspect) and the present participle of the main verb. As before, the perfect auxiliary can appear in various tenses, moods and non-finite forms:

Perfect aspect (or perfect progressive) can also be combined with the marking of passive voice. Here the participle of the main verb is replaced by the corresponding participle of be followed by the past participle of the main verb: it has been eaten; it will have been eaten; it has been being eaten. Perfect progressive passives, as in the last example, therefore involve two consecutive participles of the auxiliary verb be; these constructions are rarely used.

The implications of the present perfect (that something occurred prior to the present moment) are similar to those of the simple past. The simple past is generally used when the occurrence has a specific past time frame – either explicitly stated (I wrote a book in 1995; the water boiled a minute ago), or implied by the context (for example, in the narration of a sequence of events). The present perfect, on the other hand, is used when the assumed time frame lasts up until the present moment: I have written two novels (in my lifetime; I am still alive); You have done no work this morning (it is still the morning). It is often used to draw attention to the consequences rather than the action: I've built a tree-house (the time of building is not important; the focus is on the result, the present existence of the tree-house).[10]

Perfect progressive forms are used mainly to refer to an action continuing up to (or nearly up to) the time of reference, again with emphasis on its consequences (we were tired because we had been running), or its duration (we have been working for ten hours/since 7 o'clock). They may express interrupted activities (I had been writing a novel when she came to talk to me).[11]

The perfect infinitive (without to in most cases) can be used after modal verbs with various meanings, chiefly to express modality with regard to past events: you should have done that; she might have seen it. With would (and sometimes should and could) it forms a contrary-to-fact past conditional (conditional perfect),[12] as in she would/could have done it if she had tried.[13] (These verb forms might not be considered to be truly in the perfect aspect.[14]) For more information on such constructions, see English modal verbs (particularly the sections on the individual modals).

For more details on the usage of the various perfect constructions in English, see Uses of English verb forms.

See also


  1. ^ Dahl, Osten, Tense and Aspect Systems, Blackwell Publ., 1985, chapter 5.
  2. ^ Payne, Thomas Edward (1997). Describing morphosyntax: a guide for field linguists. Cambridge University Press. p. 240. ISBN 9780521588058. 
  3. ^ Trask, Robert Lawrence (1993). A Dictionary of Grammatical Terms in Linguistics. Routledge. p. 204. ISBN 9780415086288. 
  4. ^ Dahl, 1985, p. 190.
  5. ^ Joan Bybee, Revere Perkins, William Pagliuca, The Evolution of Grammar: Tense, Aspect, and Modality in the Languages of the World, University of Chicago Press, 1994.
  6. ^ Herbert Weir Smyth. A Greek grammar for colleges. page 413, paragraph 1852.b: stage of action: completed action with permanent result.
  7. ^ Smyth. p. 434, par. 1945.a: effects of a completed action.
  8. ^ L. R. Palmer, The Latin Language, University of Oklahoma Press, 1988, p. 8.
  9. ^ The perfect, the progressive, and the perfect progressive are three of the aspect-like forms used in English. The perfective, imperfective, completive, inceptive, punctual, iterative, and habitual are sometimes considered aspects in English as well. Thomas, Payne Edward (1997). Describing morphosyntax: a guide for field linguists. Cambridge University Press. pp. 238–241. ISBN 9780521588058. 
  10. ^ Present Perfect. Guide to Grammar and Writing.
  11. ^ Past Perfect Progressive Tense.
  12. ^ Conditional Sentences.
  13. ^ Conditional Verb Forms. Guide to Grammar and Writing.
  14. ^ Jeanette S. DeCarrico (December 1986). "Tense, Aspect, and Time in the English Modality System". TESOL Quarterly 20 (4): 665–682. JSTOR 3586517. doi:10.2307/3586517. 

External links

it:Passato prossimo