What is a verb?
A verb is a word that describes what the subject of a sentence is doing. Verbs can indicate (physical or mental) actions, occurrences, and states of being.
### Instruction: What is a verb?
### Context: 
### Answer: A verb is a word that describes what the subject of a sentence is doing. Verbs can indicate (physical or mental) actions, occurrences, and states of being.</s>