Object clauses after
a. μή clauses denote a fear that something may or might happen; μὴ οὐ clauses denote a fear that something may not or might not happen. Observe that the verb is negatived by οὐ and not by μή, which expresses an apprehension that the result will take place. μή is sometimes, for convenience, translated by whether; but it is not an indirect interrogative in such cases.2222
The construction of μή after
a. When μή had become a pure conjunction of subordination, it was used even with the indicative and with the optative with ἄν. Some scholars regard μή with the indicative as standing for ἆρα μή (hence an indirect interrogative). Observe that the character of μή after
Verbs and expressions of fear are: φοβοῦμαι, δέδοικα or δέδια, ταρβῶ, τρῶ and πέφρι_κα (mostly poetical); δεινός εἰμι, δεινόν ἐστι, δέος ἐστί, φοβερός εἰμι, φοβερόν ἐστι, etc.
a. Sometimes it is not actual fear that is expressed but only apprehension, anxiety, suspicion, etc. These are the verbs and expressions of caution: ὀκνῶ, ἀθυ_μῶ, ἀπιστῶ, ἀπιστία_ν ἔχω (παρέχω), ὑποπτεύω, ἐνθυ_μοῦμαι, αἰσχύ_νομαι (rare), κίνδυ_νός ἐστι, προσδοκία_ ἐστί. Here belong also, by analogy, ὁρῶ, σκοπῶ, ἐννοῶ, εὐλαβοῦμαι, φροντίζω, φυλάττω (-ομαι), which admit also the construction of
Herbert Weir Smyth [n.d.], A Greek Grammar for Colleges; Machine readable text [info] [word count] [Smyth].