| 21. | The past perfect is used when the action occurred in the past before another action in the past.
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| 22. | The past perfect progressive may also have additional specific uses similar to those of the plain past perfect; see,,, and.
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| 23. | The past perfect progressive may also have additional specific uses similar to those of the plain past perfect; see,,, and.
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| 24. | You're using the past perfect progressive tense ( " had been going on " ) where there is no need to.
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| 25. | Note also that for past actions that occurred " before " the relevant past time frame, the past perfect is used.
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| 26. | In Vietnamese, the present perfect tense, past perfect tense are used as past tense, future perfect are used as future tense.
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| 27. | If the verb in question does not use the past perfect is used instead ( see examples in the previous section ).
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| 28. | Unlike the present perfect, the past perfect can readily be used with an adverb specifying a past time frame for the occurrence.
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| 29. | In contrast to English and many other languages, Swedish does not use the perfect participle to form the present perfect and past perfect.
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| 30. | It mixes the " must " meaning with the present / past perfect usage, the latter of which never uses " got ".
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