ابحث
whom
01
من
used to ask questions about objects or indirect objects in sentences
02
من
used to refer to people in formal English, particularly when they are the object of a verb or preposition
03
من
used to represent the person who receives the action of the verb in the relative clause as the subject or object of verb or preposition
مثال
Whom did you invite to the party?
Whom did she choose as her partner?
Whom did you see at the store yesterday?
Whom I met yesterday is a very important man.
The reunion brought together every branch of the extended family, some of whom hadn't seen each other in decades.