Tu as is singular is French. The plural French form is Vous êtes.
Verb? If you mean noun... "you" in singular form is TU. in plural form it is VOUS.
tu m'énerves! (singular form of you) vous m'énervez! (plural form of you)
Are is plural. "Is" is singular. For example, "There is a glove on the chair". That is singular. "There are gloves on the chair". That is plural.
Who may be singular or plural.
diagnosis is singular diagnoses is plural sis = singular ses = plural
You. There is no singular or plural for "you" in English. It's just you for both singular (tu) and plural (vous).
Tu (singular) Vos (plural)
Tu (singular). Vos (plural).
Tu. (singular) Vos. (plural)
'Tu' is the singular 'you.' 'Vos' is the plural 'you.'
Tu (singular) Vos (plural)
You (familiar) = tu You (formal) = vous
If you mean 'you': tu (informal, singular); usted (formal, singular) vosotros/as (informal, plural); ustedes (formal, plural)
Tu (informal singular) Usted (formal singular) Vosotros/as (informal plural, male/female) Ustedes (formal, plural)
El libro is the singular version.
In nominative case: You (singular) = tu You (plural) = vos
Tu-informal/singular Vous- formal/plural