G5799

no tense stated (adverbial imperative) & no voice stated
When both occur together in the N.T. they are an imperative (a command) and second person singular or plural: “You come!” or “You* come!” Or more common to Modern English “Come!”
In a number of places certain verbs are cited in Perschbacher’s "The New Analytical Greek Lexicon" which do not have any tense or voice directly stated. In almost all of these cases, one can assume that the tense is Present and the voice is Active, especially when the sense is that of a command (Imperative).
See "Present" [G5774]
See "Active" [G5784]
See “Imperative” [G5794]