Sentence examples for regrettably frequent from inspiring English sources

Three-hour layovers are regrettably frequent when planes experience mechanical problems or encounter bad weather.

In all, time-related biases, which are straightforwardly avoidable with a proper design and analysis, are regrettably frequent in observational studies of diabetes research (5).

Regrettably motorcyclists frequently suffer related significant injuries.

Regrettably high.

Unforgettable, regrettably.

Regrettably not.

Regrettably, the opposite happened.

Regrettably, I can't".

But regrettably I have.

"Regrettably, I cannot".

Regrettably, the latter.