YOU SAID:
do not run; i am gone
INTO JAPANESE
走らないで;私は行ってしまった
BACK INTO ENGLISH
Do not run; I have gone
INTO JAPANESE
走らないで;行きました
BACK INTO ENGLISH
I did not run; I went
INTO JAPANESE
私は走りませんでした。私は行った
BACK INTO ENGLISH
I did not run. I went
INTO JAPANESE
私は走らなかった。私は行った
BACK INTO ENGLISH
I did not run. I went
That didn't even make that much sense in English.