[subject] + 会 + [verb] + [object] [subject] + 不会 + [verb]
会 before a verb is the "can" of a skill you learned: driving, swimming, cooking, speaking a language. Its negative is 不会.
会游泳 means you know how to swim. Whether you can swim right now, with a broken arm or no pool nearby, is a question for 能.
A language can be the direct object of 会, with no verb in between. 很会 means "good at".
会 also predicts, with no sense of skill. The negative is again 不会.