作业帮Mother's Day is coming.But he hasn't bought a present for hi
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Mother's Day is coming.But he hasn't bought a present for his mother yet.
这个现在完成时的句子中为什么能用非持续动词bought?
这个现在完成时的句子中为什么能用非持续动词bought?
因为没有跟for一段时间
不跟时间,就没必要转换成延续性的
再问： 请问不跟时间的现在完成时什么情况下用非延续性动词？
再答： 这根完成时并没有关系，只要不跟一段时间的状语，就都用短暂性动词 反之，只要跟了时间状语，哪怕不是完成时，也要转换成延续性的，比如 i will be away for weeks
不跟时间,就没必要转换成延续性的
再问： 请问不跟时间的现在完成时什么情况下用非延续性动词？
再答： 这根完成时并没有关系，只要不跟一段时间的状语，就都用短暂性动词 反之，只要跟了时间状语，哪怕不是完成时，也要转换成延续性的，比如 i will be away for weeks
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