they have a

They have a culture of their own.

Ils ont leur propre culture.

They have a cave-troll.

Ils ont un troll des cavernes.

— The Lord of the Rings: The Fellowship of the Ring (2001)

According to our records, they have a son.

D'après nos informations, ils ont un fils.

— The Garden of Sinners: Paradox Spiral (2008)

They have a legitimate lawyer and I was going to go meet with them next weekend.

Ils ont un avocat légitime et je comptais aller les rencontrer le week-end prochain.

— Juno (2007)

They have a son.

Ils ont un fils.

They have a ten-year-old son.

Ils ont un fils de dix ans.

Would they have a size smaller?

Auraient-ils une taille plus petite ?

Will they have a military escort?

Auront-ils une escorte militaire ?

— Assassination (2015)

They have a piano.

Ils ont un piano.

— The Chorus (2004)

They have a staff doctor in the emergency ward.

Ils ont un médecin titulaire au service des urgences.

— Catch Me If You Can (2002)