什么词后面要加to?答:1.介词to 有look farword to ,devote to ,get down to ,the key to ,make contributions to ,contribute to 2.动词不定式符号to 有offer to do,decide to do,hope to do, manage to do, stop to do, need to do, would like to do, want to do, prefer to do, plan to do, ...
动词的第三人称单数形式和现在分词都应该什么时候用,详细些答:I prefer singing songs. C)后跟不定式和-ing分词时,意义完全不同的动词有:remember, forget, regret., try, mean, chance(碰巧),cannot help...等。它们后面跟不定式表示动作还未发生,而跟现在分词表示动作已经发生。如:I regret to do this thing.I regret doing such a thing.Mean to do 表示打算,意欲...