ποταμῷ γὰρ οὐκ ἔστιν ἐμβῆναι δὶς τῷ αὐτῷ → it is impossible to step twice in the same river, you cannot step twice into the same rivers
v. δοκέω.
δέδογμαι: Παθ. παρακ. του δοκέω.
δέδογμαι indic. perf. med.-pass. van δοκέω.
δέδογμαι: pf. pass. к δοκέω.