Does either he or you take a singular or a plural verb?

The pronoun 'he' is the third person, singular form and takes a singular verb, for example:

• John is coming, he is expected at five.

The pronoun 'you' is both the singular and the plural form; a second person singular and plural (noun or pronoun) takes the same verb form, for example:

• Jane, you are a good friend.
• Class, you are all dismissed.