YOU SAID:
i was thinking maybe we could go on a picnic
INTO JAPANESE
ピクニックに行けるかなと思っていました
BACK INTO ENGLISH
I was wondering if I could go on a picnic
INTO JAPANESE
ピクニックに行けないかと思っていました
BACK INTO ENGLISH
I was wondering if I could go on a picnic
That didn't even make that much sense in English.