How do you say my son in Russian?

There are a few ways to say "my son" in Russian, depending on the context and the level of formality:

Formal:

* Мой сын (moy syn) - This is the most common and neutral way to say "my son."

* Сын мой (syn moy) - This is a slightly more poetic or emphatic way to say "my son."

Informal:

* Мой сынок (moy synok) - This is a more affectionate way to say "my son," used when talking to close friends or family.

The best way to choose the right phrase depends on the specific situation.