有些動詞後面一定要加動名詞，有些一定要加不定詞，有些則是兩者皆可：

 e.g. 1可加兩者的動詞：

love, hate, like, start, begin

When did you begin eating dinner／to eat dinner? (你們什麼時候開始吃晚餐的？)

 e.g. 2只能加動名詞的動詞：

enjoy, practice, finish, avoid

Do you enjoy watching movies? (你喜歡看電影嗎？)

 e.g. 3只能加不定詞的動詞：

want, tell, ask, decide

Have you decided to take this job? (你決定好要接受這份工作了嗎？)