Structure:
Subject + Verb + 完 + 了 + Object
Meaning:
As well as with 到 and 见, you can also form result complements with 完. This indicates that an action is finished or completed.
Examples:
我 昨天晚上 看 完 了 那 本 书。
Wǒ zuó tiān wǎn shɑnɡ kàn wán le nà běn shū
I finished reading that book yesterday evening.