"water under the bridge"
a past event or occurrence, often unfortunate, which cannot now be changed or undone and should therefore no longer be a source of concern
Related words and phrases:
Two colleagues are talking ...
Colleague 1: Do you think my lack of advancement in the company is due to that huge error I made two years ago?
Colleague 2: Not at all. In fact, that error that you made allowed us to actually discover some of the vulnerabilities in the system. The whole process allowed us to improve the system which made it much stronger. I really believe that any error you may have made is water under the bridge; gone and forgotten. The lack of advancement is simply a matter of the company not growing very fast. There have simply not been that many opportunities for anyone to advance.
Two friends are talking ...
Friend 1: Do you ever wonder if you could have done things differently in your marriage so that divorce would not have been the outcome?
Friend 2: I used to think that way. I had some serious doubts and regrets for a couple of years after my divorce but I have long since reconciled my feelings about it all. Besides, there is absolutely nothing I can do about it now. It is all water under the bridge.
There is no gerund form for water under the bridge.
1) ... in that day, but of those who think it is all water under the bridge and lets put it away and get on with it.
2) That was four years ago and hopefully it's all water under the bridge.
3) Whatever happened then is now in the past. Water under the bridge as the saying goes. There is a reason for everything that happens to us ...
4) By then, the Hayden thing was already water under the bridge so it was easy to like him more.
5) ... to go the other way, and then say it is all water under the bridge, earn back the respect and move on.
6) ... without trying to solve things, or by pretending it's water under the bridge while holding a grudge -- both great ways to keep from moving past issues or ...
7) ... and for that I apologise. So let's consider it water under the bridge.
8) Let bygones be bygones. It's water under the bridge. Dust in the wind.
9) When this is all water under the bridge and we sit back to laugh about it twenty years or so hence somebody will ...
10) ... couple hundred dollars more but what's done was done, so water under the bridge, I say. She was supportive enough once her temper subsided.
11) It may be water under the bridge now to some extent but I didn't hear much protest back then either.
12) But it looked like that was all water under the bridge as they indulged in some good old-fashioned fun.
13) This isn't great, but you should treat it as water under the bridge. The question is what to do now.
14) Its all water under the bridge now so why its being dredged up I don't know.
15) This fact is, however, now water under the bridge and life must go on.
16) And with so much water under the bridge she found the process therapeutic, especially when it came to dealing with the pain ...
17) ... but this is all water under the bridge now. It's time to stop discussing what has happened and ...
18) Water under the bridge now, though, and can't see it playing any significant role again for ...
19) It will soon be water under the bridge, as the saying goes, and they will be back stronger than ever, ...
20) Learn to live in the present. The past is water under the bridge of life.