1. Conditional Statements in Greek
From Smyth, Greek Grammar
Tense Mode Protasis Apodosis Example
Present or Perfect Ind. or εἰ ταῦτα ποιεῖς, καλῶς ποιεῖς.
Present Simple εἰ + Present or Perfect Ind.
equiv. If you do this, you do well.
εἰ ταῦτα ἐποίεις, καλῶς ἀν ἐποίεις.
ἀν + Imperfect Ind. or
Unreal εἰ + Imperfect Ind. If you were (now) doing this, you were doing well.
equiv.
If you had been doing this, you would have been doing well.
ἐαν ταῦτα ποιῇς, καλῶς ποιεῖς.
Present Indicative or
General ἐαν + Subjunctive If you ever do this, you will always do well. (Statement of
equivalent
general or axiomatic truth)
ἐι ταῦτα ἐποιῆσας, καλῶς ἐποιῆσας.
Past Simple εἰ + Imperf., Aorist, or Plu. Impf, Aorist, or Pluperfect
If you did this, you did well.
εἰ ταῦτα ἐποιεῖς, καλῶς ἀν ἐποιεῖς.
ἀν + Aorist or Imperfect If you were doing this, you were doing well.
Unreal εἰ + Aorist or Impf Ind.
Ind. εἰ ταῦτα ἐποιῆσας, καλῶς ἀν ἐποιῆσας.
If you had done this you would have done well.
Imperfect Indicative or εἰ ταῦτα ποιοίης, σε ἐπῄνουν.
General εἰ+ Opative
equiv. If you ever did this, I always praised you.
More Future Indicative or ἐαν ταῦτα ποιῇς, καλῶς ποιήσεις.
Future ἐαν + Subjunctive
Vivid equivalent If you do this, you will do will.
εἰ ταῦτα ποιήσεις, πείσει.
Emotional εἰ + Future Future Indicative
If you do this, you will suffer for it.
εἰ ταῦτα ποιοίης, καλῶς ἀν ποιοίης.
Less Vivid εἰ + Optative ἀν + Optative
If you should (were to) do this, you would do well.