Bare infinitive
From Teflpedia
A bare infinitive (/ˈbeər ɪnˈfɪnˌəˌtɪv/) is an English infinitive that is identical to the base form of a verb; unlike a to-infinitive it lacks the particle "to".
The bare infinitive is used:
- as the main verb after the auxiliary verb do, a full modal verb: "I will go" (not *"I will to go");
- after had better: "You had better ask him";
- with the verb help: "She helped him finish it";
- with why: "Why do it later?".
