tu fosses

were

f ɔ s ɨ ʃ → ser
foss be; go + es tu imperfect subjunctive
verb · second singular · imperfect subjunctive Rare #30,824
were Used with tu; imperfect subjunctive of ser, often after se (“if”).
PO: Se fosses mais paciente, tudo seria mais fácil.
EN: If you were more patient, everything would be easier.
Conjugation of ser
Subjunctive imperfect
SingularPlural
First fosse fôssemos
Second fosses —
Third fosse fossem

Mas agradaria-me que tu fosses feliz.

But I would like it if you were happy.

— O Leopardo (1963)

Se não fosses tão presunçoso, talvez tivesses mais amigos.

If you weren't so conceited, you might have more friends.

O que tu farias se fosses dez anos mais nova?

What would you do if you were ten years younger?

Eu queria que fosses livre.

I wanted you to be free.

— Alexandria (2009)

Pensei que fosses suíça, por causa do vestido.

I thought you were Swiss, because of the dress.

— Segunda-Feira ao Sol (2002)

O que tu farias se fosses dez anos mais novo?

What would you do if you were ten years younger?

Tu falas como se fosses o chefe.

You talk like you're the boss.