speak Chinese
我不会说汉语。
I don't speak Chinese.
你能说汉语吗?
Can you speak Chinese?
在这里有人会说汉语吗?
Does anyone here speak Chinese?
咱们要么说汉语,要么就别说话。
Either we speak Chinese, or we don't speak at all.
因为我说汉语。
Because I speak Chinese.