YOU SAID:
I ate some pizza yesterday
INTO JAPANESE
昨日いくつかのピザを食べました
BACK INTO ENGLISH
Yesterday I ate some pizza
INTO JAPANESE
昨日、私はいくつかのピザを食べた
BACK INTO ENGLISH
Yesterday, I ate some pizza
INTO JAPANESE
昨日、私はいくつかのピザを食べた
BACK INTO ENGLISH
Yesterday, I ate some pizza
That didn't even make that much sense in English.