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hAvE完成时否定

要看前面陈述句,比如you are a teacher,aren't you? you didn't go home yesterday, did you?

have做实意动词时的否定为do not have.做助动词时的否定为have not或haven't 以上回答你满意么?

have 两种词性,1:实义动词:表示有.变以成否定句的时候在have 前用donot或doesnot来否定.eg:I have some money .否定句====I donot have any money . 2.助动词.无实义,在句中构成一完成时态,这个时候变成否定句的时候在have后加not .eg:I have played piano for 10 years.否定句====I havenot played piano for 10 years.

doesn't have didn't have 因为在这两个句子中,have 是实意动词, 有…… have 构成现在完成时的时候,就可以直接否定了.

have 有两种词性:1:实义动词:表示“有”.变成否定句的时候在have 前用don't来否定. eg:i have some money .否定句为: i don't have any money . 2.助动词.无实义,在句中构成一完成时态,这个时候变成否定句的时候在have后加not . eg:i have played piano for 10 years.否定句为:i have not played piano for 10 years.

have not就是 haven't,现在完成时态,have是助动词,只是时态的标志,没有实在意义. have not done the work. 我还没完成工作(have是助动词) have not+动词过去时态

1.have表示“有”的时候,是一个实义动词,所以否定的时候,要加助动词do,所以就是don't have 了.例如:我没有钢笔.I don't have a pen. (美语于动词前do) I haven't any pen. (英语于动词后+not) 展开 作业帮用户 2017-11-03 举报

1.have 在作为 有 讲时是实义动词 在变为否定句和疑问句的时候需要助动词的帮助2.have 在助动词的时候 没有实际意义 在句中构成一完成时态 eg:i have played piano for 10 years. 我弹钢琴10年了.否定句i haven't played piano for 10 years. 我没弹钢琴10年了.所以说 i haven't a book. has he a book? 是错的.

肯定是have not seen啦 have加过去分词这个你肯定知道 那么它的否定形式当然就是在动词前面加否定词了

1. 改否定时has/have后面继续用过去分词,不变原型.2. has/have后面跟的是过去分词.3. do/does否定句需要改原型,has/have不用改满意请采纳

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