肯定形式:主语+情态动词can/may.....+动词原形+宾语。
I can finish my homework.
否定形式:主语+情态动词can/may.....+not+动词原形+宾语。
I can't finish my homework.
一般疑问句形式:情态动词Can/May.....+主语+动词原形+主语+宾语。
肯定回答是:Yes,主语+情态动词. 否定回答是:No, 主语+ 情态动词+not.
—Can you finish your homework?
—Yes,I can./No, I can't.
特殊疑问句形式:特殊疑问词+情态动词can/may.....开头的一般疑问句
—What can you do?
—I can do my homework.