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11 Cards in this Set
- Front
- Back
- 3rd side (hint)
Since or Within in a sentence |
Probably present perfect should be used. |
Since the last time Amy met her friends, none of them has seen her. |
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At the end of World War II, USA dropped/has dropped two atomic bombs in Japan. |
At means at the same time. So the verb dropped is needed. |
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Before or After in the sentence. |
Makes use of Past Perfect Sentence optional |
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Past perfect should be used for two events that are related. |
Scientists learned about ice after the Ice age had happened. Is wrong! Learned and that happening are not related |
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Single event in sentence. |
Past perfect cannot be used, at least there is another part showing that something happened after. |
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At vs By |
At means at the same time. By means one happened before the other. |
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For an event with uncertainty in the future. |
Would must be used |
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Advise/ Allow/ Forbid |
To verb required |
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Demand/ insist / Mandate |
Subjunctive verb required |
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Persuade / want / forbid |
To verb required |
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Ask / require / intend / order |
Can use subjunctive or to verb |
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