Dinner inviteA今天晚上有空吗?Jīntiān wǎnshang yǒu kòng ma?Are you free tonight?B有,怎么了?Yǒu, zěnme le?Yes, what's up?A我们一起吃饭吧。Wǒmen yìqǐ chī fàn ba.Let's eat together.
Declining politelyA你想一起去吗?Nǐ xiǎng yìqǐ qù ma?Do you want to go together?B我很想去,但是今天不行。Wǒ hěn xiǎng qù, dànshì jīntiān bù xíng.I'd like to go, but today I can't.A没关系,下次吧。Méi guānxi, xià cì ba.No problem, maybe next time.