有isn't了如果是三单还要加动词还要加s吗?

发布网友发布时间：2024-10-23 04:22

共1个回答

热心网友时间：7分钟前

isn't本来就是三单形式，不用加动词。要加动词，需要加v-ing，或v-ed或动词不定式。
He isn't here now.
He isn't doing the work.现在进行时
The work isn't done by women.被动语态
He isn't to come tonight.将来

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