vosotros sois

are

ˈs o i s → ser
verb · 2nd-person plural, present tense Rare #48,850
are Used with vos in some regions or in formal or literary speech; most voseo speakers use sos.
SP: Vos sois muy amable.
EN: You are very kind.
Conjugation of ser
Indicative present
SingularPlural
First soy somos
Second eres sois
Third es son
Subjunctive present
SingularPlural
First soy somos
Second eres sois
Third es son

No sé si vos sois tan buen hombre como yo.

I don't know if you are as good a man as I am.

— Henry V (1989)

¿Quién sois vos?

Who are you?

— Henry V (1989)

Linda sois vos.

You are beautiful.

— Relatos salvajes (2014)

Vos sois un maleducado.

You’re rude.

— Relatos salvajes (2014)

Aunque corre el rumor de que vos sois psiquiatra.

Although there's a rumor going around that you're a psychiatrist.

— Don Juan DeMarco (1994)

Sounds similar to