Упражнение 518 на формы прошедшего времени модальных глаголов Past Modals
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| Modal = should / could / might / must / would | ||
|---|---|---|
| утверждение | modal + have + past participle | # He must have overslept. |
| отрицание | modal + not + have + past participle | # You wouldn't have believed me. |
| вопрос | modal + подлежащее + have + past participle | # Should I have warned them? |