One must deplore such bad behavior.

He deplored the fact that Silesia was no longer Prussian.

He deeply deplored the situation.

What we cannot fail to deplore are those who deliberately keep their daughters in coercion or worse, send their children to the slaughterhouse. Otherwise, how could we not have kind words to those who, alas, undergo the yoke, are deprived of everything, even die of hunger, are beaten, murdered and cut to pieces to be delivered to the jackals?

We deplore your cruelty to animals.

Go then", cries Pyrrhus, "with thy tale of woe / to dead Pelides, and thy plaints outpour. / To him, my father, in the shades below, / these deeds of his degenerate son deplore."

So to his shade, with funeral rites, we rear / a mound, and altars to the dead prepare, / wreathed with dark cypress. Round them, as of yore, / pace Troy's sad matrons, with their streaming hair. / Warm milk from bowls, and holy blood we pour, / and thrice with loud farewell the peaceful shade deplore.