How do you say in French I know speak French?

You can say this in a few ways, depending on the level of formality and emphasis you want to convey:

Formal:

* Je sais parler français. (This is the most literal translation.)

* Je parle français. (This is a more common and direct way to say it.)

Informal:

* Je parle un peu français. (This means "I speak a little French" and is more appropriate if you're not fluent.)

* Je comprends un peu le français. (This means "I understand a little French" and is more accurate if you can understand but not speak fluently.)

It's also important to remember that French uses the subjunctive mood in certain contexts. For example, if you wanted to say "I know that he speaks French," you would say:

* Je sais qu'il parle français.

Finally, you can also use the verb "maîtriser," which means "to master." You could say:

* Je maîtrise le français. (This means "I master French" and implies a high level of fluency.)