A sentence that must consist of 終わられる, しまう, and よう


Is my sentence below correct? What I want to say is

> This textbook seems to be finished before Friday this week.

My attempt is as follows,

> 今週{こんしゅう}の金曜日｛きんようび｝の前｛まえ｝にこの教｛きょう｝科｛か｝書｛しょ｝が終｛お｝わられてしまうようです。




How about:

> 今週の金曜(日)までに、この教科書は終わりそうです。or 終わってしまいそうです。




終わる is an intransitive verb. You can simply say

> 今週の金曜日の前に、この教科書は終わるようです。

In this case, the passive form doesn't sound natural.

Things without feelings couldn't be a subject in a passive sentence in old
Japanese. After a lot of books in European languages were translated into
Japanese, people started to use 'things without soul' as a subject in a
passive sentence. The usage, however, is still fairly limited.

