How do you say my sweetheart in tsonga language?

There's not a direct translation for "my sweetheart" in Tsonga that is as universally used as in English. However, here are some options you can use depending on the level of intimacy and affection you want to convey:

Formal:

* N'wananga: This is a literal translation of "my child" and can be used in a more formal or respectful setting.

* N'wini wa mina: This means "my owner" and can be used in a more romantic way, but it is more formal and less common than other options.

Informal:

* Wena wa mina: This means "you are mine" and is a common way to express affection in Tsonga.

* Rirhandzu ra mina: This means "my love" and is another common way to express affection.

* Muhluri wa mina: This means "my darling" and is a more affectionate and intimate way to refer to your sweetheart.

It's important to remember that the best way to address your sweetheart in Tsonga will depend on your relationship and your level of comfort with the language.