YOU SAID:

yo ladz i got the horses in the back

INTO JAPANESE

yo ladz私は後ろに馬がいた

BACK INTO ENGLISH

yo ladz i had a horse behind

INTO JAPANESE

私は後ろに馬がいた

BACK INTO ENGLISH

I had a horse behind

INTO JAPANESE

後ろに馬がいた

BACK INTO ENGLISH

There was a horse behind

INTO JAPANESE

後ろに馬がいました

BACK INTO ENGLISH

There was a horse behind