Onun üzerinde çalışmak zorunda kalacağız.
- We'll have to work on that.
Ben bir deneme üzerinde çalışmak zorunda kaldım.
- I had to work on an essay.
John's in the studio working on the plans for the new house.
Leave it to me. I'll try to work on the boss to give us the day off.
... people who have worked on this because it has ...
... I just worked on my striking of the ball. ...