estavam namorando

were dating

→ estar
phrase Rare #34,356
were dating Used for two or more people who were romantically dating each other. This is the third-person plural imperfect form of estar + the gerund namorando.
PO: Eles estavam namorando há dois anos.
EN: They had been dating for two years.

Eu não sabia que vocês estavam namorando.

I didn’t know you two were dating.

Eu não sabia que vocês dois estavam namorando.

I didn't know you two were dating.

O Tom me disse que você e a Mary estavam namorando.

Tom told me that you and Mary were dating.

Não sabia que vocês estavam namorando.

I didn't know you two were dating.

Quem te contou que Tom e Mary estavam namorando?

Who told you that Tom and Mary were dating?

Tom e Maria estavam namorando.

Tom and Maria were dating.