I'm a native English speaker.
I took 5 years of Latin, which I can't really 'speak', but which allows me to puzzle out French, Spanish, and Portuguese enough for comprehension if it's written down or if the person talking to me is willing to speak VERY SLOWLY.
I can tell someone 'I do not speak Spanish', 'I speak very little French, badly', and 'I do not speak German' in those respective languages.
I can say 'good bye' in Russian.