I don't think that would be going back on my promise.

The immediate withdrawal of troops would mean that we are going back on our promise.

And now he is going back on his promise.

That made it appear as if the Chapmans had gone back on their promise.

Despite in need for fund he refused donation from a rich person when the latter went back on his promise.

I can understand the way it's being put but at the end of the day the Government is going to over-deliver on their promise.

She would not go back on her promise to the Englishman.

When I found out, he would not let me go back on my promise.

He had thought to leave it with her, but now found that he couldn't go back on his promise.