YOU SAID:
I ate some potatoes yesterday
INTO JAPANESE
昨日はポテトを食べました
BACK INTO ENGLISH
I had potato yesterday.
INTO JAPANESE
私は昨日じゃがいもを食べました。
BACK INTO ENGLISH
I ate the potatoes yesterday.
INTO JAPANESE
私は昨日じゃがいもを食べた。
BACK INTO ENGLISH
I ate the potatoes yesterday.
That's deep, man.