Would

In the winters

(indicating an action in the past that happened repeatedly or commonly)

Tarjoilija sanoi palaavansa pian.

(indicating an action in the past that was planned or intended)

We sat on the bench

(indicating a possible (but not definite) future action or state)

että hän palaa pian.

(indicating an action in the past that was planned or intended)

jos et olisi avannut ikkunaa!

(indicating an action or state that is conditional on another)