1. to work (for), to be employed (at), to serve (in)
2. to serve (as), to act (as), to fill (the position of), to play the role (of)
3. to conduct a religious service
1. at (place, time), in, on, during
2. to (direction, state), toward, into
3. for (purpose)
4. because of (reason), for, with
5. by, from
6. as (i.e. in the role of)
7. per, in, for, a (e.g. "once a month")
8. and, in addition to
9. if, although