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  2. Present perfect - Wikipedia

    en.wikipedia.org/wiki/Present_perfect

    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".

  3. Perfect (grammar) - Wikipedia

    en.wikipedia.org/wiki/Perfect_(grammar)

    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

  4. Uses of English verb forms - Wikipedia

    en.wikipedia.org/wiki/Uses_of_English_verb_forms

    The choice of present perfect or past tense depends on the frame of reference (period or point in time) in which the event is conceived as occurring. If the frame of reference extends to the present time, the present perfect is used. For example: I have written a letter this morning. (if it is still the morning) He has produced ten plays.

  5. Grammatical aspect - Wikipedia

    en.wikipedia.org/wiki/Grammatical_aspect

    Present progressive (progressive, not perfect): "I am eating" Present perfect (not progressive, perfect): "I have eaten" Present perfect progressive (progressive, perfect): "I have been eating" (While many elementary discussions of English grammar classify the present perfect as a past tense, it relates the action to the present time.

  6. English grammar - Wikipedia

    en.wikipedia.org/wiki/English_grammar

    A typical sentence contains one independent clause and possibly one or more dependent clauses, although it is also possible to link together sentences of this form into longer sentences, using coordinating conjunctions (see above).

  7. Present tense - Wikipedia

    en.wikipedia.org/wiki/Present_tense

    Simple present : The simple present tense is employed in a sentence to represent an action or event that takes place in the present regularly. Present perfect : The present perfect tense is utilized for events that begin in the past and continue to the moment of speaking, or to express the result of a past situation. [2]

  8. Sequence of tenses - Wikipedia

    en.wikipedia.org/wiki/Sequence_of_tenses

    In Latin, the sequence of tenses rule affects dependent verbs in the subjunctive mood, mainly in indirect questions, indirect commands, and purpose clauses. [4] If the main verb is in one of the non-past tenses, the subordinate verb is usually in the present or perfect subjunctive (primary sequence); if the main verb is in one of the past tenses, the subordinate verb is usually in the ...

  9. Grammatical tense - Wikipedia

    en.wikipedia.org/wiki/Grammatical_tense

    Proto-Indo-European verbs had present, perfect , imperfect and aorist forms – these can be considered as representing two tenses (present and past) with different aspects. Most languages in the Indo-European family have developed systems either with two morphological tenses (present or "non-past", and past) or with three (present, past and ...