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实义动词与情态动词怎么辨别

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实义动词与情态动词怎么辨别
实义动词与情态动词怎么辨别
1.时态不同,实义动词基本可用语各种时态( 过去,现在,将来,完成)
情态动词一般用语一般过去,一般现在
如:I have to go now./ He is having lunch.He has a watch.He is going to have a meeting,tomorrow.He has alreas had a rest.
2.实义动词可单独使用,有人称的变化,情态动词后跟动词原形,没有人称和数的变化
如:He usually has lunch at home.
I/ We/ She/ He/ They can swim,