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I gave the books to them.
The speaker directed the action toward a group of people or things.
Third-person plural object pronoun, referring to people or things previously mentioned or implied
She called them yesterday.
The pronoun refers to a group of people or things.
I don’t know them personally.
Refers to a group of people not previously specified.
Used after verbs or prepositions (e.g., 'give to them', 'talk about them').
'Them' is an object pronoun (e.g., 'I see them'), while 'they' is a subject pronoun (e.g., 'They see me').
Use 'them' when the pronoun is the object of a verb or preposition (e.g., 'I told them the truth').
Old English 'þām' (dative plural of 'hīe'), from Proto-Germanic '*þaim' (them/their). Related to Old Norse 'þeim' and German 'ihnen'.
Always used as an object pronoun (never as a subject). In informal speech, 'them' can sometimes replace 'those' (e.g., 'them books' instead of 'those books'), but this is nonstandard.