Mr. Smith had a big house in dowrtowm.是过去时吗 怎么区分
问题描述:
Mr. Smith had a big house in dowrtowm.是过去时吗 怎么区分
答
时态看谓语动词.这句话的谓语动词是had,是have的过去式,所以是过去时Mymotherusuallycutthemeat intopiece.改为否定,一般疑问句这句话的cut是过去式,因为my mother 是第三人称单数,后面的谓语动词不会用原形,只能是三单或过去式。而cut不是三单,只能是过去式否定 My mother didn't usually cut the meat into pieces.一般疑问 Did your mother usually cut the meat into pieces?