Ah! Thank you for your response. I am unable to find the principal parts for this verb after having looked in numerous sources. I would have guessed the principal parts to be λαλέω (pres.act.), λαλέσω (fut.act.), λάλεσα (1st aor.act.), λέληκα (perf.act.), λάλεμαι (perf.mid.), and λαλέθην (aor.pass.).
Can you tell me the principal parts or suggest where I can find them? Based on what you've told me, are they λαλέω (pres.act.), λαλέσω (fut.act.?), ἐλάλησα (1st aor.act.), ἐλάληκα (perf.act.?), ἐλάλημαι (perf.mid.?), and ἐλάθην (aor.pass.?)?