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The future perfect is a verb form or construction used to describe an event that is expected or planned to happen before a time of reference in the future, ...
The word "perfect" in this sense means "completed"; it contrasts with the "imperfect", which denotes uncompleted actions or states. In English grammar, the pluperfect (e.g. "had written") is now usually called the past perfect, since it combines past tense with perfect aspect. (The same term is sometimes used in relation to the grammar of other ...
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).
The future perfect progressive or future perfect continuous combines perfect progressive aspect with future time reference. It is formed by combining the auxiliary will (or sometimes shall, as above), the bare infinitive have, the past participle been, and the present participle of the main verb.
Future perfect, conditional perfect: "I will have eaten", "I would have eaten" Future perfect progressive, conditional perfect progressive: "I will have been eating", "I would have been eating" The uses of the progressive and perfect aspects are quite complex. They may refer to the viewpoint of the speaker:
The main Latin tenses can be divided into two groups: the present system (also known as infectum tenses), consisting of the present, future, and imperfect; and the perfect system (also known as perfectum tenses), consisting of the perfect, future perfect, and pluperfect. [1] [2] [3] [4]
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 ...
Combined with the non-past forms, this expresses an imperfective future and a perfective future. Combined with the imperfective past it is used to indicate the conditional, and with the perfective past to indicate the inferential. If the future particle precedes the present perfect form, a future perfect form results.