YOU SAID:

My cousin is 20 years older than me, and can't swim!

INTO JAPANESE

私のいとこは私より20歳年上で、泳げません！

BACK INTO ENGLISH

My cousin is 20 years older than me and can't swim!

INTO JAPANESE

私のいとこは私より20歳年上で、泳げません！

BACK INTO ENGLISH

My cousin is 20 years older than me and can't swim!