1. Bala(,) whom you will work with (,) is the monitor of 6 Integrity.
2. The chef (,) whom we met just now (,) is very famous in Singapore.
3. The girl (,) whom you said is haughty (,) is my sister.
4. Sue (,) whom we adore (,) is a great guitarist.
5. The man (,) whom you handed the key to (,) is not the security guard.
(,) = optional
However, should you include commas, you need to have two of them.
