nǐ hǎo ！
Hi. / How do you do.
nín hǎo ！
Hi. / How do you do. (To seniors or superiors to show respect.)
hěn gāo xìng rèn shí nǐ 。
Nice to meet you.
zǎo shàng hǎo ！
xià wǔ hǎo ！
wǎn shàng hǎo ！
wǎn ān ！
chī le ma ？
Have you had your meal? (Chinese way of greeting, usually around the meal time.)
chū qù ya ？ Are your going out? (Chinese way of greeting when you are going out.)
chū qù le ？
You've been out, haven't you? (Chinese way of greeting when you have just come back from outside.)
hǎo jiǔ bù jiàn， zuì jìn zěn me yàng ？
Long time no see. How are you doing?
zuì jìn máng shén me ne ？
What are you busy about recently?
zuì jìn shēn tǐ hái hǎo ma ？
How are you recently?
zuì jìn gōng zuò shùn lì ma ？
How are you getting along with your work recently?
qǐng dài wǒ xiàng nǐ fù mǔ wèn hǎo 。
Please give my best regards to your parents.
wáng wěi yào wǒ xiàng nǐ wèn hǎo 。
Wang Wei wished to say hello to you.