Present general conditional relative clauses have ἄν with the subjunctive. The main clause has the present indicative or an equivalent.
νέος δ' ἀπόλλυθ' ὅντιν' (= εἴ τινα) ἂν φιλῇ θεός ‘he dieth young, whome'er a god doth love’
γαμοῦσί τε ὁπόθεν ἂν βούλωνται, ἐκδιδόωσί τε εἰς οὓς ἂν ἐθέλωσι
πατρὶς γάρ ἐστι πᾶσ' ἵν' ἂν πρά_ττῃ τις εὖ
a. Gnomic aorist in the main clause: ὅς κε θεοῖς ἐπιπείθηται, μάλα τ' ἔκλυον αὐτοῦ
b. The subjunctive without ἄν (κέ) is usual in Homer and occurs occasionally in Attic and lyric poetry. Thus,
ἀνθρώπους ἐφορᾷ καὶ τί_νυται ὅς τις ἁμάρτῃ
τῶν δὲ πημονῶν μάλιστα λυ_ποῦσ' αἳ φανῶσ' αὐθαίρετοι
c. The apodosis here usually expresses a general truth, less often iterative action. In 2568 the apodosis refers to iterative action, usually on the part of designated individuals.
Herbert Weir Smyth [n.d.], A Greek Grammar for Colleges; Machine readable text [info] [word count] [Smyth].