As you have already learnt, the past tense is indicted by the past forms of the three key verbs, do, be, and have. With do, the past is indicated by did for all persons. With be, the past is indicated by was for third persons, and were for all other persons. With have, the past is indicated by had for all persons. The past tense is shown by the inflected past form of the verb have, had, and this is used for all subjects. Past tense, perfect aspect is one of the least used of all the tense-aspect combinations in English. The past perfect has one main use and that it to talk about one thing that happened before another thing in the past. The past perfect basically talks about the past in the past. This British English grammar is essential for all students of English and the many exercises in the pack will help you master it quickly and enjoyably.
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