had to的否定形式是不是hadn't to什么时候用had't
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had to的否定形式是不是hadn't to什么时候用had't
我最好还是不要打扰你了 英语怎么说had better 否定形式是 Had better not?那么有没有I hadn't better 这种形式?
To his surprise,she said she hadn't.最后的hadn't为什么这样用,直接加否定
had在否定时,后面的动词是什么时态?He hadn`t won the Pritzer Prize until 1955.中的won是过去式,否定形式的也要是动词的过去分词吗?
They had to walk here,hadn't they?哪错了?写出正确的句子
had been的否定形式
She had to do it again___she?A.had B.hadn't C.did D.didn't
现在完成时否定I haven't seen it从来没有看见它I hadn't noticed 怎么一个个have 一个用had
they had to change the planes ,() they A hadn't B didn't C did
don't的否定形式
情态动词have to的否定形式是don`t have to还是haven`t to?
ought to,had better,have to的否定形式,给几个例句;had better后必须加动原吗?一定要给例句.
they had to walk there,hadn't they?怎么改 he had better stay here,doesn't he?怎么改
What would you have done last night if you hadn't had to study 是什么时态
Mr Black had to go back,后面填hadn't he?这个是特殊用法吗?
When I was sick I _____ to go to the hospital.was having have had not had hadn't
虚拟语气中wish后的宾语从句为什么用hadn’t do表否定,而不是hadn’t done,不是表示过去完成时的否定吗?
ought to的否定形式