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  2. 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.

  3. English grammar - Wikipedia

    en.wikipedia.org/wiki/English_grammar

    An advanced English syntax based on the principles and requirements of the Grammatical society. London: Keegan Paul, Trench, Trubner & co. A new edition of An advanced English syntax, prepared from the author's materials by B. D. H. Miller, was published as Modern English syntax in 1971. Palmer, F. R. (1974). The English verb. London: Longman.

  4. Perfect (grammar) - Wikipedia

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

    The perfect can also be combined with another aspect [21] 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), which in turn is followed ...

  5. Pluperfect - Wikipedia

    en.wikipedia.org/wiki/Pluperfect

    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 languages.) English also has a past perfect progressive (or past perfect continuous) form: "had been writing".

  6. Present perfect - Wikipedia

    en.wikipedia.org/wiki/Present_perfect

    In English, completed actions in many contexts are referred to using the simple past verb form rather than the present perfect. English also has a present perfect continuous (or present perfect progressive) form, which combines present tense with both perfect aspect and continuous (progressive) aspect: "I have been eating". The action is not ...

  7. English verbs - Wikipedia

    en.wikipedia.org/wiki/English_verbs

    A regular English verb has only one principal part, from which all the forms of the verb can be derived.This is the base form or dictionary form.For example, from the base form exist, all the inflected forms of the verb (exist, exists, existed, existing) can be predictably derived.

  8. Conditional perfect - Wikipedia

    en.wikipedia.org/wiki/Conditional_perfect

    The conditional perfect is a grammatical construction that combines the conditional mood with perfect aspect.A typical example is the English would have written. [1] The conditional perfect is used to refer to a hypothetical, usually counterfactual, event or circumstance placed in the past, contingent on some other circumstance (again normally counterfactual, and also usually placed in the past).

  9. Sentence (linguistics) - Wikipedia

    en.wikipedia.org/wiki/Sentence_(linguistics)

    In linguistics and grammar, a sentence is a linguistic expression, such as the English example "The quick brown fox jumps over the lazy dog." In traditional grammar , it is typically defined as a string of words that expresses a complete thought, or as a unit consisting of a subject and predicate .