Do you work shifts or in shifts?

[ROBINDESBOIS]

What´s the correct do you work in shifts or do you work shifts?

[Perikles]

In a generalization, people work in shifts:

The Health Service has the policy that nurses always work in shifts.
The firemen worked around the clock in shifts to rescue people from the collapsed building.

With a specific person describing his/her job, they work shifts:

I hate my job because I have to work shifts.

[chileno]

Originally Posted by Perikles

In a generalization, people work in shifts:

The Health Service has the policy that nurses always work in shifts.
The firemen worked around the clock in shifts to rescue people from the collapsed building.

With a specific person describing his/her job, they work shifts:

I hate my job because I have to work shifts.

Exactly as in Spanish.