The verb '終わる' is commonly used in daily conversation to indicate the completion of an action or event. It is a neutral verb and can be used in both casual and formal contexts.
宿題を終おわる。
Shukudai o owaru.
Finish the homework.
映画はもうすぐ終おわる。
Eiga wa mou sugu owaru.
The movie will finish soon.
おわります (owarimasu)
to finish