utrum ... an;

-ne ... an;

—— ... an;

—— ... ne.

Examples:—

quaerō utrum vērum an falsum sit,
quaerō vērumne an falsum sit,
quaerō vērum an falsum sit,
quaerō vērum falsumne sit,
}
} I ask whether it
} is true or false?
}

a. 'Or not' in the second member of the double question is ordinarily expressed by necne, less frequently by an nōn; as,—

dī utrum sint necne, quaeritur, it is asked whether there are gods or not.

5. Haud sciō an, nesciō an, by omission of the first member of the double question, occur with the Subjunctive in the sense: I am inclined to think, probably, perhaps; as,—

haud sciō an ita sit, I am inclined to think this is so.