How do you say my twin in French?

There are a few ways to say "my twin" in French, depending on the context and your gender:

Formal:

* Mon jumeau/ma jumelle: This is the most literal translation and is suitable for formal situations. It translates to "my twin" (male or female).

Informal:

* Mon frère/ma sœur jumeau/jumelle: This is a more specific way to say "my twin brother/sister".

* Mon jumeau/ma jumelle et moi: This literally means "my twin and I".

Example:

* J'ai un jumeau. (I have a twin.)

* Ma sœur jumelle est très différente de moi. (My twin sister is very different from me.)

* Mon jumeau et moi sommes très proches. (My twin and I are very close.)

Note:

* If you're talking about a specific twin, use the masculine or feminine form of "jumeau/jumelle" depending on their gender.

* If you're talking about yourself and your twin together, use the plural "jumeaux/jumelles".