The positive / negative question ►yǒu méiyǒu 有沒有 (trad) 有没有 (simp) can be used to ask Do you have? Yǒu méiyǒu literally means have or not have. It can be prefaced with a pronoun, but if the context is clear, the pronoun is usually omitted.
If you are in a store, you can ask ►yǒu méiyǒu mài - Do you sell? The correct tone is essential here - ►mài 賣 (trad) 卖 (simp) means "to sell" but ►mǎi 買 (trad) 买 (simp) means "to buy".
Examples of Do You Have?
Audio files are marked with ►
Do you have a pen?
►nǐ yǒu méiyǒu bǐ?
(trad) 你有沒有筆?
(simp) 你有没有笔?
Does he have a car?
►tā yǒu méiyǒu chē?
(trad) 他有沒有車?
(simp) 他有没有车?
Do you have any money?
►nǐ yǒu méiyǒu qián?
(trad) 你有沒有錢?
(simp) 你有没有钱?
Examples of Do You Sell?
Do you sell newspapers?
►nǐ yǒu méiyǒu mài bàozhǐ?
(trad) 你有沒有賣報紙?
(simp) 你有没有卖报纸?
Do you sell magazines?
►nǐ yǒu méiyǒu mài zázhì?
(trad) 你有沒有賣雜誌?
(simp) 你有没有卖杂志?
Do you sell bread?
►nǐ yǒu méiyǒu mài miànbāo?
(trad) 你有沒有賣麵包?
(simp) 你有没有卖面包?