In grammar, an intransitive verb is a verb that takes no object. Examples of intransitive verbs include:
- I ate.
- He thought.
- She runs.
There are languages that mark verbs for their transitivity, such that the verb in "I ate" and "I ate a fish" would have different affixes. In addition, ergative verbs generally take complementizers, while normal intransitive verbs can take prepositional phrases. Thus:
- He thought that you were ill.
- She runs through the woods.
- He thought through the woods.
- She runs that you were ill.