他生病了，好久没去上班。

Tā shēngbìng le, hǎojiǔ méi qù shàngbān.

He was sick and hasn't gone to work for a long time.

这家饭店我好久没来了。

Zhè jiā fàndiàn wǒ hǎojiǔ méi lái le.

I haven't come to this restaurant for a long time.

好久不见，你最近怎么样？

Hǎojiǔ bú jiàn, nǐ zuìjìn zěnmeyàng?

Long time no see, how have you been recently?