How do you say i have 7 cousins in french?

There are a couple of ways to say "I have 7 cousins" in French, depending on the gender of your cousins:

If your cousins are all female:

* J'ai 7 cousines. (This is the most common and natural way to say it)

If your cousins are all male:

* J'ai 7 cousins. (This is the most common and natural way to say it)

If your cousins are a mix of male and female:

* J'ai 7 cousins. (Again, the most common and natural way to say it)

More formally:

* Je possède sept cousins. (This is more formal and less common)

Remember that in French, the number "seven" (sept) is invariable, meaning it doesn't change based on gender.