There are two kinds of verb.

1. Transitive Verb
2. Intransitive Verb

The verb which requires an object to complete its sense is called Transitive verb.

Example:
1. The man killed a snake.
2. He bought a house.
3. We cut apples.

The verb which does not require an object to complete its sense is intransitive verb.

Example:
1. They weep.
2. She smiles.