YOU SAID:
i saw a monkey eat a big potato
INTO JAPANESE
猿が大きなじゃがいもを食べるのを見た
BACK INTO ENGLISH
I saw a monkey eating a big potato
INTO JAPANESE
猿が大きなじゃがいもを食べているのを見ました
BACK INTO ENGLISH
I saw a monkey eating a big potato
Come on, you can do better than that.