精选优质文档-倾情为你奉上情态动词本身有一定的词义,但是不能独立作谓语,只能和行为动词一起构成谓语。情态动词用在行为动词前,表示说话人对这一动作或状态的看法或主观设想。 情态动词虽然数量不多,但用途广泛,主要有下列: can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would) .只做情态动词:must,can,may可做情态动词又可做:如:need,will,dare具有情态动词特征:have(had,has) to,used to,ought to可做情态动词又可作助动词:如:shall(should),will(would)注:mustnt代表强烈禁止 must表示主观,have to表示客观。常用的有:can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would)位置:1- 具有助动词作