YOU SAID:
I like to touch little boys.
INTO JAPANESE
私は男の子をタッチしたいです。
BACK INTO ENGLISH
I want to touch the boy.
INTO JAPANESE
私は少年に触れたいです。
BACK INTO ENGLISH
I will touch on the boy.
INTO JAPANESE
私は少年に触れます。
BACK INTO ENGLISH
I was touching the boy.
INTO JAPANESE
私はその少年を触れていた。
BACK INTO ENGLISH
I had touched the boy.
INTO JAPANESE
私はその少年を触れていた。
BACK INTO ENGLISH
I had touched the boy.
That didn't even make that much sense in English.