YOU SAID:
I will watch some cows fight.
INTO JAPANESE
私はいくつかの牛が戦うのを見ます。
BACK INTO ENGLISH
I see some cows fight.
INTO JAPANESE
何頭かの牛が喧嘩しているのが見える
BACK INTO ENGLISH
I see some cows fighting
INTO JAPANESE
私はいくつかの牛が戦っているのを見ます
BACK INTO ENGLISH
I see some cows fighting
You've done this before, haven't you.