vorum

In a sentence

• Við vorum að lesa bók í garðinum.

  We were reading a book in the garden.

  Here, 'vorum' is used in the past continuous tense to indicate an action (reading) that was ongoing in the past.

• Hvers vegna vorum við ekki boðin í veisluna?

  Why were we not invited to the party?

  In this case, 'vorum' is part of a question, used for stating something in past passive voice.

• Vorum við nokkurn tímann búin að kynnast henni?

  Had we ever met her before?

  Here 'vorum' is used as part of a past perfect question structure, asking about prior acquaintance.