-ыл, -іл, -л, -ын, -ін, -н endings are used to express passive voice.

For example,
Есік ашылды.=The door was closed.
Үй тазаланды.=The house was cleaned.
Қонақтар шақырылады.=The guests will be invited.
Мақала жазылып жатыр.=The article is being written.

Exercise 1. Make up 5 sentences in a passive voice.