decide的否定句为什么在后面加not,而不是在前面加don't例如：I decide not to go to school 那need 的用法呢?那其他的及物动词的后面加不定式是否也这样呢?例如want,hope,wish,like,begin等

decide的否定句为什么在后面加not,而不是在前面加don't例如：I decide not to go to school 那need 的用法呢?那其他的及物动词的后面加不定式是否也这样呢?例如want,hope,wish,like,begin等 be quiet, please.该否定句be动词不是应该在后面加not吗 It' s not too bed 为什么能加too,一般都是放在后面的啊? we like watching tv改否定句可以改为we like not watching吗?为什么为什么后面加not是错的，加don't是对的 使役动词let否定形式,是加在let前还是后.在线等,急那这句话：Our teacher lets us not smoke 是加在后面的 I decide to do my homework.否定句I don't decide to do my homework.还是I decide not to do my homework. 英语中把肯定句改成否定句的规则规则之一：有be动词的直接在后面+not.可是要不要还原动词原形呢? we diceded to have a fashion show this weekend.(改为否定句)我们学的短语是decide not to do sth .可答案是didn't decide to have .到底怎么用. 直接加not和加does’t和don’t的否定句举例 so as只能加not用于否定句吗?不能的单独用于肯定句? 为什么过去完成时的否定句里面要加yet 英语否定句have/has+not.为什么在后面加过去式动词..It rained very hard last night.(so hard for six months)It hasn't rained so hard for six months.He flew his plane in bad weather.(never...such bad weather before)He has never flown his seem to的否定为什么是do not seem to 而不是not加后面? 这个是我所学过的短语,肯定句decide to do sth ,否定句decide not do do sth We decided to do to see a moive this sunday.（改为否定句）We ( )( ) to do to see a moive this sunday.请说明原因, I think the yellow monkey is 150cm tall.的否定句是怎样的为什么不是在be系动词后面加not “变否定句”be动词后加“not”?都是这样变的吗? 改have的否定句改否定句什么时候have直接加not、什么时候要在have前加don‘t I want me to be an actor.否定句为什么不在前to be前加NOT