(bound form) already; having occurred or finished; indicates a state that is established or completed

(literary or bound form) to look at; to watch; to see; used as a root in words related to sight or vision

(bound form) a feeling or emotion; also used as a suffix for a "sense of" something, such as a 责任感 zé​rèn​gǎn or 幽默感 yōu​mò​gǎn