Mary and I washed and waxed the car. what's a subject and a verb

Mary and I is the subject, and washed and waxed the car are the verbs

Subjects: "Mary" and "I"

Verbs: "washed" and "waxed"

Explanation:

A subject is a noun or pronoun that performs the main action in a sentence or the one that is being described or dealt with. A verb is a word indicating an action, state or condition of a subject. In the sentence, "Mary and I" are the subjects because they are performing the main action, which it's "washed" and "waxed" (these words indicate actions).