εἰ μὴ ἦλθον καὶ ἐλάλησα αὐτοῖς, ἁμαρτίαν οὐκ εἶχον → if I had not come and spoken to them, they would not be guilty of sin
adv.
As far as one can guess: V. ὡς εἰκάσαι, ὡς ἐπεικάσαι, ὡς ἀπεικάσαι.