Have and has are two ways to conjugate the same verb, so it can be difficult to remember which is which. In the present tense, have is the first person singular and plural, second-person singular and plural, and third-person plural conjugation of this verb. Has is the third-person singular present tense.
Has or have singular or plural?
You'll notice that the only subject you should use "has" with is third person singular (he has, she has, it has). You should use "have" everywhere else. The subject "Al and Sue" is third person plural (the same as "they"), so use "have."
Has plural meaning?
EXPLANATION of WORDS: Have is the root VERB and is generally used alongside the PRONOUNS I / You / We / Ye and They and PLURAL NOUNS. Generally, have is a PRESENT TENSE word. Has is used alongside the PRONOUNS He / She / It and Who and SINGULAR NOUNS. ... Plural refers to more than one person / animal / thing, etc.