He is a fretful old guy who becomes irritated easily. Fretful is an adjective that describes, a person who doesn't handle irritation well.

Leave on it's own won't have a plural form.  Leave is a verb so you can't really have two Leave.  But, you can have two things that leave, and so you need agreement.  For example: The boys leave at 7:00pm every evening.  In this case it is the noun "boys" that needs to be plural.  To simply answer the question, … Read more