1. work shifts
Will I work shifts
Nurses usually work shifts.
2. shifts
night shifts
From this we can derive the argument that major population shifts are not the result of economic change.
It's OK if Yukiko can do the Tuesday, Thursday and Friday shifts from tomorrow.
3. shift work
People get used to shift work.
shift work is work that takes place on a schedule outside the traditional 9 am – 5 pm day
4. works shift