Formal:
* Savoir parler: This is the most common and literal translation. It means "to know how to speak."
* Être capable de parler: This means "to be capable of speaking." It implies a higher level of skill than simply knowing how to speak.
Informal:
* Parler: This is the most casual way to say "to speak." You can use it when talking to friends or family.
* Avoir le niveau pour parler: This means "to have the level to speak." It implies that you have the necessary skills to communicate effectively.
Examples:
* Je sais parler français: I know how to speak French. (formal)
* Je suis capable de parler anglais: I am capable of speaking English. (formal)
* Je parle espagnol: I speak Spanish. (informal)
* J'ai le niveau pour parler italien: I have the level to speak Italian. (informal)
The best way to choose the right phrase depends on the situation and your relationship with the person you are talking to.