Is famliy singular or plural? Jim's family _____ At home last Sunday?

Is famliy singular or plural? Jim's family _____ At home last Sunday?

was
If it's families, use the plural

they have famliy parties.famliy Do you want the plural?

Instead of using family directly, family can be regarded as a collective noun. This kind of collective noun composed of individuals is used as a whole, and it is regarded as a singular number to emphasize its individual members. It is regarded as a plural meaning (but it does not add plural form)

The plural of they
If not, please write all its forms!

They are plural, they mean, singular is he he she it it
The object case of them is the reflexive pronoun of them