Despite their best efforts Warlock showed a regrettable tendency to be good at maths.

Even my highly regrettable tendency to react positively whenever the fridge door is opened was proof against that.

Now, then except for this regrettable tendency to not let your commanding officer get a word in edgewise, you have done a capable job.

I have long noticed a regrettable tendency toward softheartedness in you.

I have noted in counsel a regrettable tendency to adversary tactics, a practice against which I warned you.

An example: soldiers had a regrettable tendency to demand regular pay, on time, for the risks they took.

Genji did, it was true, show regrettable tendencies, but he kept himself under control and seemed to have become genuinely fond of Tamakazura.

No doubt that was an example of her regrettable tendency to cynicism.

Corbaccio had a regrettable tendency to get over excited.

There is a regrettable tendency on both sides to "commission" anyone with a ship capable of long sea voyages.