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  2. Present perfect - Wikipedia

    en.wikipedia.org/wiki/Present_perfect

    No particular past time frame is specified for the action/event. When a past time frame (a point of time in the past, or period of time which ended in the past) is specified for the event, explicitly or implicitly, the simple past is used rather than the present perfect. The tense may be said to be a sort of mixture of present and past.

  3. Uses of English verb forms - Wikipedia

    en.wikipedia.org/wiki/Uses_of_English_verb_forms

    The past perfect progressive or past perfect continuous (also known as the pluperfect progressive or pluperfect continuous) combines perfect progressive aspect with past tense. It is formed by combining had (the past tense of auxiliary have), been (the past participle of be), and the present participle of the main verb.

  4. Latin tenses - Wikipedia

    en.wikipedia.org/wiki/Latin_tenses

    The present tense can replace not only the perfect tense, but also sometimes the imperfect tense: [40] tōtīs trepidātur castrīs (Caesar) [41] 'in the whole camp there is panic' (i.e. people were panicking) After dum 'while', in a past context, the present indicative regularly has the meaning of an imperfect tense: [42]

  5. Grammatical tense - Wikipedia

    en.wikipedia.org/wiki/Grammatical_tense

    Imperfect tense verbs represent a past process combined with so called imperfective aspect, that is, they often stand for an ongoing past action or state at a past point in time (see secondary present) or represent habitual actions (see Latin tenses with modality) (e.g. 'he was eating', 'he used to eat'). The perfect tense combines the meanings ...

  6. Perfect (grammar) - Wikipedia

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

    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.

  7. English auxiliary verbs - Wikipedia

    en.wikipedia.org/wiki/English_auxiliary_verbs

    The present perfect tense is illustrated by I've left it somewhere; the past perfect (also called the preterite perfect) tense by I'd left it somewhere. [9]: 140–141 A full description of their uses is necessarily complex: the discussion in The Cambridge Grammar of the English Language is long and intricate. [9]: 139–148

  8. Present tense - Wikipedia

    en.wikipedia.org/wiki/Present_tense

    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] Present continuous: The present continuous tense is used to describe an action that is happening right now. Present perfect continuous

  9. 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 ...