Thou hast both seen him (kai heōrakas auton). Perfect active indicative (double reduplication) of horaō. Since his eyes were opened.
And he it is that speaketh with thee (kai ho lalōn meta sou ekeinos estin). “And the one speaking with thee is that man.” See Joh 19:35 for ekeinos used of the speaker. In Joh 4:26 Jesus reveals himself in like manner to the Samaritan woman as Messiah while here as the Son of Man (or the Son of God).