YOU SAID:
he will be holding my drum
INTO JAPANESE
彼は私のドラムを持っているでしょう
BACK INTO ENGLISH
he'll have my drums
INTO JAPANESE
彼は私のドラムを持ってくるでしょう
BACK INTO ENGLISH
he'll bring my drum
INTO JAPANESE
彼は私のドラムを持ってくるでしょう
BACK INTO ENGLISH
he'll bring my drum
That didn't even make that much sense in English.