YOU SAID:

if i said he would do say go he didn't do said i would he do good job he did

INTO JAPANESE

彼が行くと言うと言ったら、彼はやらないと言った

BACK INTO ENGLISH

If he said he would go, he said he would not

INTO JAPANESE

彼が行くと言ったら、彼はしないと言った

BACK INTO ENGLISH

If he said he would go, he said he would not