YOU SAID:

i find my friend john very helpfull in this time of need

INTO JAPANESE

私は私の友人のジョンがこの必要な時に非常に役立つと思います

BACK INTO ENGLISH

I think my friend John will be very helpful when this is needed

INTO JAPANESE

これが必要なとき、私の友人のジョンはとても役立つと思います

BACK INTO ENGLISH

I think my friend John will be very helpful when this is needed