They didn't called their friends.这句话中有一处是错误,请你帮我找出来并说明为什么要改成这个单词
问题描述：
They didn't called their friends.这句话中有一处是错误,请你帮我找出来
并说明为什么要改成这个单词
答
Called 改成 call
答
called---call
答
They didn't call their friends.
助动词did后面要用原形