zǎo​zhī​jīn​rì​hé​bì​dāng​chū

to regret one's past behavior

Senses

早知今日何必当初/ 早知今日何必當初 zǎo​zhī​jīn​rì​hé​bì​dāng​chū to regret one's past behavior

Used to express that if one had known things would turn out this way, one would not have acted as one did; to regret a past mistake in light of present consequences.

References

synonym 早知今日何必当初/早知今日何必當初 悔不当初/悔不當初