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  2. Simple past - Wikipedia

    en.wikipedia.org/wiki/Simple_past

    Regular verbs form the simple past end-ed; however there are a few hundred irregular verbs with different forms. [2] The spelling rules for forming the past simple of regular verbs are as follows: verbs ending in -e add only –d to the end (e.g. live – lived, not *liveed), verbs ending in -y change to -ied (e.g. study – studied) and verbs ending in a group of a consonant + a vowel + a ...

  3. Simplified Technical English - Wikipedia

    en.wikipedia.org/wiki/Simplified_Technical_English

    The simple present tense; The simple past tense; The past participle (only as an adjective) The future tense; Do not use helping verbs to make complex verb structures. Use the "-ing" form of a verb only as a technical name or as a modifier in a technical name. Do not use passive voice in procedures. Use the active voice as much as possible in ...

  4. English grammar - Wikipedia

    en.wikipedia.org/wiki/English_grammar

    Most verbs have three or four inflected forms in addition to the base form: a third-person singular present tense form in -(e)s (writes, botches), a present participle and gerund form in -ing (writing), a past tense (wrote), and – though often identical to the past tense form – a past participle (written).

  5. Past tense - Wikipedia

    en.wikipedia.org/wiki/Past_tense

    The past tense of regular verbs is made by adding -d or -ed to the base form of the verb, while those of irregular verbs are formed in various ways (such as see→saw, go→went, be→was/were). With regular and some irregular verbs, the past tense form also serves as a past participle. For full details of past tense formation, see English verbs.

  6. English modal auxiliary verbs - Wikipedia

    en.wikipedia.org/wiki/English_modal_auxiliary_verbs

    The English modal auxiliary verbs are a subset of the English auxiliary verbs used mostly to express modality, properties such as possibility and obligation. [a] They can most easily be distinguished from other verbs by their defectiveness (they do not have participles or plain forms [b]) and by their lack of the ending ‑(e)s for the third-person singular.

  7. Preterite - Wikipedia

    en.wikipedia.org/wiki/Preterite

    The preterite or preterit (/ ˈ p r ɛ t ər ɪ t / PRET-ər-it; abbreviated PRET or PRT) is a grammatical tense or verb form serving to denote events that took place or were completed in the past; in some languages, such as Spanish, French, and English, it is equivalent to the simple past tense.

  8. Constituent (linguistics) - Wikipedia

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

    The answer fragment test involves forming a question that contains a single wh-word (e.g. who, what, where, etc.). If the test string can then appear alone as the answer to such a question, then it is likely a constituent in the test sentence: [12] Drunks could put off the customers. (a) Who could put off the customers? - Drunks.

  9. English auxiliary verbs - Wikipedia

    en.wikipedia.org/wiki/English_auxiliary_verbs

    The first English grammar, Bref Grammar for English by William Bullokar, published in 1586, does not use the term "auxiliary" but says: All other verbs are called verbs-neuters-un-perfect because they require the infinitive mood of another verb to express their signification of meaning perfectly: and be these, may, can, might or mought, could, would, should, must, ought, and sometimes, will ...