| 词组 | can't have |
| 释义 | can't (be) • can't have (been) - Alicia can't have seen it because she wasn't there. (Not *can't see* * mustn't have seen*) (can't have refers to present certainty or deduction about the past) - He can't be more than 30. (can't (be) refers to present certainty or deduction about the present) - He can't leave hospital before Friday. (= he isn't allowed to: present or future reference) - She can't be given the keys to the house till she's eighteen. (= it isn't possible: present or future reference) |
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