YOU SAID:

he thick boy he thick

INTO JAPANESE

彼は厚い男の子彼は厚い

BACK INTO ENGLISH

He's a thick boy he's thick

INTO JAPANESE

彼は太い男の子です彼は太いです

BACK INTO ENGLISH

He's a fat boy he's a fat boy

INTO JAPANESE

彼は太った少年です彼は太った少年です

BACK INTO ENGLISH

He is a fat boy he is a fat boy

INTO JAPANESE

彼は太った少年です彼は太った少年です

BACK INTO ENGLISH

He is a fat boy he is a fat boy