Just as in English we have 'they' and 'them' (but note, only 'you'), French uses these so-called plural Stress Pronouns.
Note that most are the same as the Subject pronouns, with the exception of eux.
|Subject Pronoun||Stress Pronoun|
Simple uses of Stress pronouns
- extra emphasis
- single word responses
- very simple sentences
Eux is used whenever the group is masculine or mixed.
Only use elles when all members of the group are female.
See also the singular stress pronouns: Moi, toi, lui, elle = me, you, him, her (stress pronouns)
and the more advanced lesson Moi, toi, lui, elle, nous, vous, eux, elles (advanced stress pronouns)
NOTE: With eux and elles, technically you should say Ce sont... for it is but you will hear people use c'est. Use ce sont in writing, but you can use c'est in speech.
See C'est, ce sont = this is, these are (demonstrative pronouns)