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：2024-11-10 03:19
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
