b) By num or -ne, without distinction of meaning; as,—
Epamīnōndās quaesīvit num salvus esset clipeus, or salvusne esset clipeus, Epaminondas asked whether his shield was safe;
disputātur num interīre virtūs in homine possit, the question is raised whether virtue can die in a man;
ex Sōcrate quaesītum est nōnne Archelāum beātum putāret, the question was asked of Socrates whether he did not think Archelaus happy.
NOTE.—Nōnne in Indirect Questions occurs only after quaerō, as in the last example above.
2. Often the Indirect Question represents a Deliberative Subjunctive of the direct discourse; as,—
nesciō quid faciam, I do not know what to do. (Direct: quid faciam, what shall I do!)
3. After verbs of expectation and endeavor (exspectō, cōnor, experior, temptō) we sometimes find an Indirect Question introduced by sī; as,—
cōnantur sī perrumpere possint, they try whether they can break through.
a. Sometimes the governing verb is omitted; as,—
pergit ad proximam spēluncam sī forte eō vēstīgia ferrent, he proceeded to the nearest cave (to see) if the tracks led thither.
4. Indirect Double Questions are introduced in the main by the same particles as direct double questions ([§ 162], 4); viz.;—