ἄν,
conditional particle,
which cannot usually be separately translated in English, its force depending on the constructions which contain it (see further, LS, see word; WM, §xlii; M, Pr., 165 ff.; MM, VGT, see word).
__1. In apodosis,
__(i) with indic, imperfect or aor., expressing what would be or would have been if (εἰ with impf., aor. or plpf.) some condition were or had been fulfilled: Luk.7:39 17:6, Jhn.5:46, Gal.1:10, Mat.12:7 24:43, 1Co.2:8, Act.18:14, 1Jn.2:19, al. The protasis is sometimes understood (as also in cl.): Mat.25:27, Luk.19:23. In hypothetical sentences, expressing unreality, ἄν (as often in late writers, more rarely in cl.) is omitted: Jhn.8:39 15:24 19:11, Rom.7:7, Gal.4:15;
__(ii) with opt., inf., ptcp. (cl.; see LS, see word; M, Int., §275; M, Pr., 167:4).
__2. In combination with conditional, relative, temporal, and final words;
__(i) as in cl., with subj.,
__(a) in protasis with εἰ, in Attic contr. ἐάν, which see;
__(b) in conditional, relative, and temporal clauses (coalescing with ὅτε, ἐπεί, etc.; see: ὅταν, ἐπάν, etc.), ever, soever;