za dwa tygodnie

We march upon Paris, and in a fortnight will be there.

Another course for six people will run in a fortnight.

I have to be out of the house in a fortnight.

A woman who would be someone's wife in a mere fortnight.

And quite suddenly, for the first time in a fortnight, they were to leave the hold of the ship.

We were the first souls they had seen in a fortnight.

"The letter said you must be ready in a fortnight."

"Well, we could go lots of places in a fortnight to three weeks."

A foot a day and he'd have been done in a fortnight.

The moment of truth will come in a fortnight, once the media have chosen to focus on other events.