YOU SAID:

sam sits in front of me and i cant tell if he is a ginger or not

INTO JAPANESE

サムは私の前に座って、彼がショウガかどうかを私は知らない

BACK INTO ENGLISH

Sam sits in front of me and I do not know if he is a ginger

INTO JAPANESE

サムは私の前に座って、彼がショウガかどうかわからない

BACK INTO ENGLISH

Sam sits in front of me and I do not know if he is a ginger