YOU SAID:

i eat the neighbours dogs poo when he leaves it in the yard

INTO JAPANESE

彼が庭に置いてきた隣人の犬のうんちを私は食べます

BACK INTO ENGLISH

I eat the neighbor's dog poop that he left in the yard

INTO JAPANESE

彼が庭に残した隣人の犬のうんちを食べる

BACK INTO ENGLISH

eat the neighbor's dog poop he left in the yard

INTO JAPANESE

彼が庭に残した隣人の犬の糞を食べる

BACK INTO ENGLISH

eat the neighbor's dog poop he left in the yard