3 sentences

1. 他是这里附近酒吧和酒馆的常客。

   tā shì zhè​lǐ fù​jìn jiǔ​bā hé jiǔ​guǎn de cháng​kè.

   He's a regular at the bars and pubs around here.

   Source: Tatoeba

2. 他是这家书店的常客，每周都会来两三次。

   tā shì zhè jiā shū​diàn de cháng​kè, měi zhōu dōu huì lái liǎng sān cì.

   He is a regular at this bookstore, visiting two or three times a week.

   Source: Dong Chinese Dictionary

3. 这类小错误在初学者的文章中是常客。

   zhè lèi xiǎo cuò​wù zài chū​xué​zhě de wén​zhāng zhōng shì cháng​kè.

   These kinds of minor mistakes are common in the essays of beginners.

   Source: Dong Chinese Dictionary