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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.
The past perfect progressive (sometimes referred to as the past perfect continuous) combines had (the simple past of have) with been (the past participle of be) and the present participle of the main verb: You had been waiting. It is used to refer to an ongoing action that continued up to the past time of reference.
English also has a past perfect progressive (or past perfect continuous) construction, such as had been working. This is the past equivalent of the present perfect progressive, and is used to refer to an ongoing action that continued up to the past time of reference. For example: "It had been raining all night when he awoke."
For example, the noun aerobics has given rise to the adjective aerobicized. [3] Words combine to form phrases. A phrase typically serves the same function as a word from some particular word class. [3] For example, my very good friend Peter is a phrase that can be used in a sentence as if it were a noun, and is therefore called a noun phrase.
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.
The conjugations of the indicative perfect past and the indicative imperfect past are derived from participles (just like the past tense formation in Slavic languages) and hence they agree with the grammatical number and the gender of noun which the pronoun refers to and not the pronoun itself. The perfect past doubles as the perfective aspect ...
Latin has present, perfect and future infinitives, with active and passive forms of each. For details see Latin conjugation § Infinitives. English has infinitive constructions that are marked (periphrastically) for aspect: perfect, progressive (continuous), or a combination of the two (perfect progressive).
The past tense (simple past or past progressive) of the condition clause is historically the past subjunctive. In modern English this is identical to the past indicative , except in the first and third persons singular of the verb be , where the indicative is was and the subjunctive were ; was is sometimes used as a colloquialism ( were ...