Connects the first part of a sentence to show a concession, often used with 但是 dàn​shì, 还是 hái​shi, or 却 què; similar to 虽然 suī​rán.

Indicates that one can do something freely and without hesitation; similar to 只管 zhǐ​guǎn

Used as an adverb to mean always or all the time