YOU SAID:

one time i had a pet fish and my friend came to my house and ate it whole,he said it was stinky fishy

INTO JAPANESE

あるとき、ペットの魚を食べて、友達が私の家に来て、それを丸ごと食べて、彼はそれが臭い魚だと言った

BACK INTO ENGLISH

One time I ate a pet fish, a friend came to my house and ate it whole, he said it was a stinky fish

INTO JAPANESE

ペットの魚を食べたとき、友人が私の家に来てそれを丸ごと食べた、彼はそれが臭い魚だと言った

BACK INTO ENGLISH

When I ate a pet fish, a friend came to my house and ate it whole, he said it was a stinky fish

INTO JAPANESE

私がペットの魚を食べたとき、友人が私の家に来て、それを丸ごと食べた、彼はそれが臭い魚だと言った

BACK INTO ENGLISH

When I ate a pet fish, a friend came to my house and ate it whole, he said it was a stinky fish