haud scio an

• (Classical Latin) IPA^(key): [ˈhau̯d ˈski.oː ˈan]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈau̯d ˈʃiː.o ˈan]

haud sciō an

1. (idiomatic, intransitive, of statement) I do not know whether…(such and such is true), perhaps…(such and such is true)
   • 56 BC, Marcus Tullius Cicero, translated by Charles Duke Yonge, Pro Marco Caelio‎^[1], section 16:

     Quod haud sciō an dē ambitū et dē crīminibus istīs sodālium ac sequestrium, quoniam hūc incidī, similiter respondendum putem.

     And I do not know whether I need think it equally necessary to make a reply to the charges of corruption, and to the accusations about clubs and agents (since I have lighted on these topics.)

• Followed by a subjunctive clause