YOU SAID:
I killed 20 people last morning
INTO JAPANESE
私は昨朝20人を殺した
BACK INTO ENGLISH
I killed 20 people yesterday.
INTO JAPANESE
私は昨日2 0人を殺した。
BACK INTO ENGLISH
I killed twenty people yesterday.
INTO JAPANESE
私は昨日2 0人を殺した。
BACK INTO ENGLISH
I killed twenty people yesterday.
You've done this before, haven't you.