Auxiliary verbs – Exercise 336
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Tense | Auxiliary verb |
---|---|
Present simple | do, does |
Present continuous | am, are, is |
Present perfect | have, has |
Present perfect continuous | have been, has been |
Past simple | did |
Past continuous | was, were |
Past perfect | had |
Past perfect continuous | had been |
Future simple | will, shall |
Future continuous | will be, shall be |
Future perfect | will have |
Future perfect continuous | will have been |