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Regular in past tense and sometimes in past participle. must – (no other forms) Defective: Originally a preterite; see English modal verbs: need (needs/need) – needed – needed: Weak: Regular except in the use of need in place of needs in some contexts, by analogy with can, must, etc; [4] see English modal verbs: ought – (no other forms ...
The verb read /ɹiːd/ has the same spelling in all three forms, but not the same pronunciation for the past tense and past participle /ɹɛd/, as it exhibits vowel shortening. In a few cases the past tense of an irregular verb has the same form as the infinitive of a different verb.
The past tense is a grammatical tense whose function is to place an action or situation in the past. Examples of verbs in the past tense include the English verbs sang , went and washed . Most languages have a past tense, with some having several types in order to indicate how far back the action took place.
With the exception of the highly irregular verb be, an English verb can have up to five forms: its plain form (or bare infinitive), a third person singular present tense, a past tense (or preterite), a past participle, and the -ing form that serves as both a present participle and gerund.
The past participle of regular verbs is identical to the preterite (past tense) form, described in the previous section. For irregular verbs, see English irregular verbs. Some of these have different past tense and past participle forms (like sing–sang–sung); others have the same form for both (like make–made–made).
Regular verbs have identical past tense and past participle forms in -ed, but there are 100 or so irregular English verbs with different forms (see list). The verbs have, do and say also have irregular third-person present tense forms (has, does /dʌz/, says /sɛz/).
The past perfects continuous tense refers to an action that was happening up until a particular point in the past but was completed. [4] It is different from the past perfect tense because the emphasis of past perfect continuous verbs is not on the action having been completed by the present moment, but rather on its having taken place actively ...
The simple past is used when the event happened at a particular time in the past, or during a period which ended in the past (i.e. a period that does not last up until the present time). This time frame may be explicitly stated, or implicit in the context (for example the past tense is often used when describing a sequence of past events). [7]