tu étais parti

you had left

→ tu
phrase Rare #35,417
you had left This is the masculine singular form; use « tu étais partie » when speaking to a woman.
FR: Je pensais que tu étais parti.
EN: I thought you had left.

Oui, tu étais parti.

Yes, you had left.

— A Bad Son (1980)

J'ai cru que tu étais parti toi aussi.

I thought you left too.

— Akira (1988)

Je croyais que tu étais parti.

I thought you left.

Tu étais parti.

You were gone.

— Ip Man (2008)

Mais tu étais parti du pays pendant tant d'années !

But you had been away from the country for so many years!

— No (2012)

J'ai cru que tu étais parti.

I thought you were gone.

Quand je suis arrivée, tu étais parti.

When I arrived, you had already left.

— Cours, Lola, cours (1998)

Tu étais parti chercher une maison, non ?

You went to look for a house, didn't you?

— Arrietty, le petit monde des chapardeurs (2010)

Je pensais que tu étais parti.

I thought you were gone.

Je suis descendue et tu étais parti.

I went downstairs and you were gone.