情态动词

[TOC]

情态动词

用法规则：

情态动词 12 个。

can	could	may	might
should	must	Have to	dare
needn’t	Had better	Ought to = should	be able to = can

句型：

can

could

may

might

should

must

have to

dare

needn’t

had better

ought to = should

be able to = can