新编英语语法教程（主编：章正邦） 大学英语语法课件PPT 学生用书 15. The infinitive

In terms of form, there are two types of infinitive: to-infinitive and bare infinitive; the bare infinitive is just the infinitive without “to”, which is identical in form with the base of the verb.The infinitive has no tense distinctions, nor person or number contrast; but they can be passive and only take the simple, and perfectiveforms.......