How do you say I go to high school in french?

The most natural way to say "I go to high school" in French is:

Je vais au lycée.

Here's a breakdown:

* Je: I

* vais: go (present tense of aller)

* au: to the (masculine singular)

* lycée: high school

Other options:

* Je suis au lycée. (I am in high school) - This is more about your current status, not the act of going.

* Je fréquente le lycée. (I attend high school) - This is a more formal way to say it.

Remember that in French, "lycée" is masculine, so you need to use the masculine definite article "le" before it.