What verb form is used for "you and your friends"? The verb is cantar.
verb form to use with "tú y tu amigos" You and your friends sing very well.
4 Answers
As you can tell from the two different answers it depends on what regional Spanish you are trying to use.
In Spain, the plural for tú is vosotros, so the conjugation is cantáis.
In Latin America vosotros has been replaced by ustedes (and so is used for the informal as well as the formal plural of you), so the conjugation is cantan.
cantáis
tu= sing+2nd person[cantas] tu amigos=plural+2nd person[cantáis]
therefore tu +tu amigos== plural 2nd person==cantáis
Tu y tus amigos cantáis muy bien
Cantan