YOU SAID:

i think you're gonna change my plans

INTO JAPANESE

あなたは私の計画を変えるつもりだと思う

BACK INTO ENGLISH

I think you're going to change my plan

INTO JAPANESE

私の計画を変えてくれると思います

BACK INTO ENGLISH

I think it will change my plan

INTO JAPANESE

それは私の計画を変えると思います

BACK INTO ENGLISH

I think it will change my plan