taught和teach,怎么区分?什么时候用taught什么时候用teach

taught和teach,怎么区分?什么时候用taught什么时候用teach taught和teach什么关系? who taught和who did teach teach和taught的区别跟用法? who taught和who did teach有何区别 who taught和who did teach的区别 bought 【buy过去式】 taught【teach过去式]thought【think过去式造句 Did you always teach history? Have you always taught history teach什么时候加es?为什么 以“I teach/taught/am going to teach my grandparent(s)/parents teach在什么时候要加es? Thank you very muchfor____us so well A.teach B.taught C.teac