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The present perfect is a grammatical combination of the present tense and perfect aspect that is used to express a past event that has present consequences. [1] The term is used particularly in the context of English grammar to refer to forms like "I have finished".
(present progressive passive) The stadium will have been built by next January. (future perfect passive) I would have got/gotten [32] injured if I had stayed in my place. (conditional perfect passive with get) It isn't nice to be insulted. (passive infinitive) Having been humiliated, he left the stage. (passive present participle, perfect aspect)
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
A passive voice construction is a grammatical voice construction that is found in many languages. [1] In a clause with passive voice, the grammatical subject expresses the theme or patient of the main verb – that is, the person or thing that undergoes the action or has its state changed. [2]
The present perfect may also be used with future reference, instead of the future perfect, in those dependent clauses where future occurrence is denoted by present tense (see § Dependent clauses below). For example: When you have written it, show it to me. For the possibility of a present perfect subjunctive, see English subjunctive.
The base form or plain form of an English verb is not marked by any inflectional ending.. Certain derivational suffixes are frequently used to form verbs, such as -en (sharpen), -ate (formulate), -fy (electrify), and -ise/ize (realise/realize), but verbs with those suffixes are nonetheless considered to be base-form verbs.
Latin deponent verbs can belong to any conjugation. Their form (except in the present and future participle) is that of a passive verb, but the meaning is active. Usually a deponent verb has no corresponding active form, although there are a few, such as vertÅ 'I turn (transitive)' and vertor 'I turn (intransitive)' which have both active and deponent forms.
The terms perfective and perfect should not be confused. A perfect tense (abbreviated PERF or PRF) is a grammatical form used to describe a past event with present relevance, or a present state resulting from a past situation. For example, "I have put it on the table" implies both that I put the object on the table and that it is still there ...