Sentence examples similar to that was regrettable indeed from inspiring English sources

But in some ways that is regrettable.

"If people were offended by what happened then, in some ways, that is regrettable.

You wrote much that was regrettable".

That was regrettable, said Hague, but not catastrophic.

The loss of his writings is regrettable indeed.

That is regrettable.

I think that's regrettable.

That is regrettable and dangerous.

And that is regrettable.

That's regrettable.

"That is regrettable," he said.