and or连接动词比如说 he doesn't 动词1 or 动词2 动词2用单三还是原型doesn't换成didnt

来源：学生作业帮编辑：神马作文网作业帮分类：英语作业时间：2024/10/08 01:29:29

and or连接动词
比如说 he doesn't 动词1 or 动词2 动词2用单三还是原型
doesn't换成didnt呢.
XX and XX be动词 good friend 这里用is、还是are
如果用there be 句型采取的是就近原则吗

1.第二个动词都是用原形.
doesn't/didn't后面用的动词都用动词原形,而不能用单三/过去式,因为doesn't/didn't已经有了相应的单三/过去式变化了.
而且此时的动词2必须和and/or前面的动词1形式一致,因为and/or是并列连词,其前后形式必须一致.
如：I didn't dance or sing last night.
2.用are.
因为句子主语为复数（XX and XX ）,所以如果句子时态为一般现在时的时候,谓语动词的数也采用复数形式are.
如：Tom and Lucy are good friends.
3.没错,there be句型的be必须采用就近原则,即和最靠近be的名词的性/数保持一致.
如：There is a book and two pens on the desk..
There are two books and one book on the desk.

and or连接动词比如说 he doesn't 动词1 or 动词2 动词2用单三还是原型doesn't换成didnt don't/doesn't+V(动词原型）的句子 He couldn't read or write,为什么不能用and连接两个动词? doesn't是不是动词或助动词? doesn't后跟动词原形吗? She doesn't konw whether to go or wait.这个句子中为什么要用动词不定式（to go 英语动词原形我搞不懂的动词原形.列；He speaks English.改成否；He doesn't speak Eng 我知道在did,didn't does doesn't,还有几个情态动词后,动词要用原型.能不能给我详细的介绍一下呢. doesn’t like ＋动词（什么形式） doesn't like 后面是不是跟动词原形? He doesn't P.E____ he doesn't like art .A.and B.or C.but 用动词不定式解释句子He doesn't consider that is important.