～かいもなく (〜kai mo naku)
Explanation
Expresses the meaning of 'without worth', 'in vain', 'fruitless'.
Formation
Verb-た + かいもなく / Noun + の + かいもなく
Detailed Explanation
The ～かいもなく grammar point is used to express that something has been done without worth, in vain, or fruitlessly. It often appears as 'Verb-た + かいもなく' or 'Noun + の + かいもなく' to indicate that an effort did not produce the hoped-for result.
Examples
長い間苦労したかいもなく、失敗してしまった。
Nagai aida kurō shita kai mo naku, shippai shite shimatta.
I struggled for a long time, but in the end, it was all in vain and I failed.
このプロジェクトにたくさん時間をかけたかいもなく、うまくいかなかった。
Kono purojekuto ni takusan jikan o kaketa kai mo naku, umaku ikanakatta.
I spent a lot of time on this project, but it ended fruitlessly.
助けを求めたかいもなく、誰も来なかった。
Tasuke o motometa kai mo naku, dare mo konakatta.
He asked for help, but it was in vain as no one came.
色々な方法でダイエットを試みたかいもなく、全然痩せなかった。
Iroirona hōhō de daietto o kokoromita kai mo naku, zenzen yasenakatta.
I tried various diet methods, but it was all for nothing—I didn't lose any weight.
Grammar content sourced from hanabira.org.