did,was,were后接的动词用过去式还是用原型?1,I didn''t know you were in Paris.2,He was born in 1989.3,I was robbed of my watch.第1句did 后面用原型konw第2句was 后面用过去式born,born是过去式吧?第3句was后也用过去式robbed有些是加原型,有些是加过去式,
问题描述：
did,was,were后接的动词用过去式还是用原型?
1,I didn''t know you were in Paris.
2,He was born in 1989.
3,I was robbed of my watch.
第1句did 后面用原型konw
第2句was 后面用过去式born,born是过去式吧?
第3句was后也用过去式robbed
有些是加原型,有些是加过去式,
答
第二句和第三句was表达的都是被动的意思，所以用的是过去式。
而第一句，did是作为助动词，一般这类后面更动词原形。
答
第一句中,did(do)为助动词,故后跟动词原形,在第二、三句中,was(be)born 和was(be) robbed分别构成被动形式,即be done的形式,所以后面跟过去分词,而不是像你所说得过去式.有些动词的过去式与过去分词相同,所以容易弄混.但只要记住,be done,即be动词加上过去分词done构成被动形式就可以了.