YOU SAID:

My phone doesn’t work on days that end in y!

INTO JAPANESE

私の電話は、y で終わる日は機能しません。

BACK INTO ENGLISH

My phone doesn't work on days ending with y.

INTO JAPANESE

私の電話は、y で終わる日は機能しません。

BACK INTO ENGLISH

My phone doesn't work on days ending with y.