may 后面加动词原形吗?比如HE may come or comes?

may 后面加动词原形吗?比如HE may come or comes? does后面要跟动词原形吗比如：He does morning exercise every day[exercise后面要加S吗 like to后面加动词原形吗 对了,第三人称单数要用单三式吗比如：he like to walk to school may I后面加动词原形还是其他形式 may后面是否加动词原形,may be后面是否加名词? should 后面必须加动词原形吗, should 后面必须加动词原形吗, often 后面加动词原形吗 have to后面加动词原形吗? should 后面必须加动词原形吗, often 后面加动词原形吗 often后面是加动词原形吗 to后面加动词原形吗? to 后面必须加动词原形吗 did 后面是加动词原形吗? can后面加动词原形吗 will后面是加动词原形吗? “to”后面一定要加动词原形吗?