YOU SAID:

This is Kayley's fault because she didn't check it at lunch. Why couldn't she have checked it at lunch?

INTO JAPANESE

彼女は昼食時にそれをチェックしなかったので、これはケイリーのせいです。なぜ彼女は昼食時にそれをチェックできなかったのですか？

BACK INTO ENGLISH

This is Kaley's fault because she didn't check it at lunch. Why couldn't she check it at lunch?

INTO JAPANESE

彼女は昼食時にそれをチェックしなかったので、これはケイリーのせいです。なぜ彼女は昼食時にそれを確認できなかったのですか？

BACK INTO ENGLISH

This is Kaley's fault because she didn't check it at lunch. Why didn't she see it at lunch?

INTO JAPANESE

彼女は昼食時にそれをチェックしなかったので、これはケイリーのせいです。なぜ彼女は昼食時にそれを見なかったのですか？

BACK INTO ENGLISH

This is Kaley's fault because she didn't check it at lunch. Why didn't she see it at lunch?