YOU SAID:
mhm I was laughing not going mhm
INTO JAPANESE
ム私は笑っていたムに行かなかった
BACK INTO ENGLISH
mu I didn't go to mu I was laughing
INTO JAPANESE
mu私はmuに行かなかった私は笑っていました
BACK INTO ENGLISH
mu I did not go to mu I was laughing
INTO JAPANESE
mu私はmuに行かなかった私は笑っていました
BACK INTO ENGLISH
mu I did not go to mu I was laughing
That didn't even make that much sense in English.