第4个回答 2016-03-31
这句话涉及到be动词、一般动词的现在时的否定式问题。want是一般动词,不可以在后面加上否定字not,要借助助动词。
一、be动词的现在时否定。
be动词的现在时的否定式,只要在be动词后面加上否定字not即可,如:
He is not a good baseball player.
She isn't my boyfriend.
You aren't my sons.
二、一般动词现在时的否定。
一般动词现在时的否定式,不可以在一般动词后面加上否定字not,需要用助动词do或does,does用在主语为第三人称单数时,而在助动词do、does后面的动词一定要用原形。
Samuel doesn't have dinner at that restaurant.
He doesn't come from New England.
The twin brothers don't go to school by bus.