How do you say in English cómo se llaman tus hermanos?

The English translation of "cómo se llaman tus hermanos?" is:

What are your siblings' names?

Here's why:

* "Cómo" translates to "what" in this context.

* "Se llaman" translates to "are called" or "are named".

* "Tus hermanos" translates to "your siblings".

You can also say:

* What are your brothers and sisters' names?

* What are the names of your siblings?