YOU SAID:
super mario had a super peni
INTO JAPANESE
スーパーマリオはスーパーペニを持っていた
BACK INTO ENGLISH
Super Mario had a super penis
INTO JAPANESE
スーパーマリオはスーパーペニスを持っていました
BACK INTO ENGLISH
Super Mario had a super penis
That didn't even make that much sense in English.