YOU SAID:
I've played basketball for 10 years!!
INTO JAPANESE
私は10年間バスケットボールをしました!
BACK INTO ENGLISH
I played basketball for 10 years!
INTO JAPANESE
私は10年間バスケットボールをしました!
BACK INTO ENGLISH
I played basketball for 10 years!
That didn't even make that much sense in English.