greek infinitive

An infinitive in Greek can be adverbial, adjectival, or substantival.  Study BBG chapter 32 or this video.  The infinitive is identified by its own unique set of endings:

Articular infinitives are often paired with prepositions to show purpose, time, or result (BBG 32.15).

1. An articular infinitive with εἰς or πρός shows purpose.
2. An articular infinitive with ὥστε shows result.
3. An articular infinitive with πρό, ἐν, or μετά shows time.
4. An articular infinitive with διά shows cause.