YOU SAID:
Are you gonna finish that?
INTO JAPANESE
あなたはそれを終えるつもりですか?
BACK INTO ENGLISH
Are you planning to finish it?
INTO JAPANESE
あなたはそれを終えることを計画していますか?
BACK INTO ENGLISH
Are you planning on finishing it?
INTO JAPANESE
あなたはそれを終えることを計画していますか?
BACK INTO ENGLISH
Are you planning on finishing it?
That didn't even make that much sense in English.