～ようがない (〜you ga nai)
Explanation
Expresses that there is no way (method) to do something; it's impossible to do.
Formation
Verb-ます stem + ようがない
Detailed Explanation
「～ようがない」 is used with the ます-stem of a verb to indicate that there is no means or method to carry out that action. It conveys the sense that it's impossible to do something or that there's absolutely no way to achieve it.
Examples
彼の連絡先がわからないので、助けようがない。
Kare no renrakusaki ga wakaranai node, tasukeyou ga nai.
I don't know his contact information, so there's no way I can help him.
ここまで壊れてしまったら、もう直しようがない。
Koko made kowarete shimattara, mou naoshiyou ga nai.
Now that it's broken this badly, there's no way to fix it.
証拠が全くないから、彼が犯人だと証明しようがない。
Shouko ga mattaku nai kara, kare ga hannin da to shoumeishiyou ga nai.
There’s no evidence at all, so there’s no way to prove he’s the culprit.
突然英語で話しかけられて、何と答えればいいか分からず答えようがなかった。
Totsuzen eigo de hanashikakerarete, nan to kotaereba ii ka wakarazu kotaeyou ga nakatta.
I was suddenly spoken to in English and didn’t know how to respond, so there was no way for me to reply.
Grammar content sourced from hanabira.org.