won't 100%
may/might 50%maybe 50%（一般位于句首）
may not/might not 50%
probable 70%possible 50%doubtful 20%
musthave to
it is that
will definitely not=definitely won't 110% probably won't 70%
may/maybe/may be的区别https://wenku.baidu.com/view/6e5cdbfe4693daef5ff73d06.htmlmay情态动词表推测，后接动词原形You may well say so.maybe是副词，作状语Maybe she'll come this afternoon.may be作谓语，译成可能是He may be a teacher.maybe 和 may be 可互相转换You may be right= Maybe you are right.
mustn'tdon't have to
L-08Modal Verbs
will 100%
will definitely 110%will probably 70%
