The "base form" of a verb is the same as the infinitive form (e.g., to do, to see, to excel, to pass, to test, etc.), without the "to".
* These are not verbs in the base form:
- leaves, left, leaving
- wants, wanted, wanting
- excels, excelled, excelling
- passes, passed, passing
The base form of the verb is often used with auxiliary verbs. For example: "will send ", "did you sing".
The base form is also used with certain verb form structures. For example: "She let his son stay up late"Discussion about the term "Base Form":
Some teachers use different terms to refer to the infinitive without the to. Some of these terms include:
- bare infinitive
- root of the verb
- verb root
- dictionary form
These terms are also acceptable ways to refer to the base form.