нам следовало

we should have

→ мы
phrase Rare #51,744
we should have Expresses something that was advisable or necessary for us to do, often with a sense of regret.
RU: Нам следовало уйти раньше.
EN: We should have left earlier.

Нам следовало быть осторожными.

We should have been careful.

— Двойная страховка (1944)