YOU SAID:
the potatoes from yesterday are going bad!
INTO JAPANESE
昨日のジャガイモが悪くなってきた!
BACK INTO ENGLISH
Yesterday's potatoes are getting worse!
INTO JAPANESE
昨日のジャガイモは悪化しています!
BACK INTO ENGLISH
Yesterday's potatoes are getting worse!
Come on, you can do better than that.