当主语不是第三人称单数时:肯定句 :主语+动词原形+其它否定句 :主语+don't+动词原形+其它一般疑问句: Do+主语+动词原形+其它 特殊疑问句:特殊疑问词+一般疑问句
I like apples. I don’t like apples. Do you like apples? What do you like?