基本结构：主语+动词过去式+其他；否定形式①was/were+not;②在行为动词前加didn't,同时还原行为动词；一般疑问句Did+主语+do+其他.特殊疑问句 疑问句词+did+主语+动词原形+其他 肯定式I worked He(she,it) worked W...