What is infinite verbs?

Answer 1

It's infinitive.

A verb in this form:

(to) be

(to) see

(to) run

(to) walk

(to) think

Basically a verb without any tense or modification to it.

You should be able to use it like this:

I run.

I walk.

I think.

I am... The verb "be" is irregular, and "am" is placed after I instead.

Answer 2

An infinite verb is a verb in its basic form and can be used in past, present and future; for example, to play or to eat. It will always have "to" in front of it.