will加動詞原形是什麼時態

其他情態動詞舉例：

can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would) must

四大分類

①只做情態動詞:may, might, must..

②可做情態動詞又可做實義動詞：如：need, dare,can

③具有情態動詞特徵：have(had,has) to,used to, ought to

④可做情態動詞又可作助動詞：如：shall(should),will(would)

注意：mustn't代表強烈禁止 must表示主觀，have to表示客觀。美式英語中常用must not 而不用 mustn't. mayn't,mightn't和shan't也很少用