怎么改否定句为什么要has改为have

Question

如题所述

Answer 1

例1：I have a pen.
I have a pen.
have用于除第三人称单数外的人称实义动词,变否定句不能在have后加not,则需要助动词来帮助解决.do+not= don’t.
例2：My father has a watch.
My father doesn't have a watch.
has 用于第三人称单数外的人称实义动词,变否定句不能在has后加not,则需要助动词来帮助解决.does+not=doesn't
注：变第三人称单数是,要注意动词部分的还原.

Answer 2

句型转换时须助动词帮助，助动词与主语人称保持一致，后面的动词须改为原形。如：
He often has a meeting on Monday morning.
否定句：He doesn't often have a meeting
on Monday morning.

Answer 3

have用于除第三人称单数外的人称实义动词,变否定句不能在have后加not,则需要助动词来帮助解决.do+not= don’t