Future Active Infinitive

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Introduction

To make the future active infinitive, simply add /ειν to the future stem:

          λέγ/σ/ειν > λέξειν
          ϝερ/έ/ειν > ἐρέειν (Ionic) or ἐρεῖν (Attic)

BASE

/σ/ or /ε/

/ειν

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Intermediate

English does not have a future infinitive, so there’s not a great way to translate the Greek future infinitive in isolation. Take a look at the future infinitive in the following sentences:

μέλλω ταῦτα λέξειν αὐτὸν ταῦτα ἐρεῖν νομίζω

I intend to say these things I think that he will say these things

The marker /ειν is the combination of a theme vowel -ε- and the active infinitive marker /εν. Since all forms of the future are thematic, we find only /ειν in the future active.