Seninle gidememem üzücüdür. - It is regrettable that I can't go with you.
Seninle gidememem üzücüdür.
It is regrettable that I can't go with you.
O gerçekten üzücüdür. - It is truly regrettable.
O gerçekten üzücüdür.
It is truly regrettable.
It was regrettable that the teacher made the class retake the test when he was wrong about the answers.