he must do or he must does
hi, every one,i am confused about the what we say after the word"must",such as he must do or he must does,which one is right?

Question

Answer

"He must DO" 

As a rule in English grammar,the second verb after any auxiliary verb (must here) is always in the infinitiv form. 

can do 
must do 
will do 
etc

Answer

He must do.

Answer

He must do is correct...must之后跟的是动词原型，不是he must does。。这个表达是错误的，Good luck with your English

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