29.6 Note the principal parts of another common Greek –μι verb, stand. This verb has both a FIRST and ATHEMATIC SECOND AORIST form! Note also that, unlike the previous three verbs, this verb keeps its long stem vowel throughout the singular and plural.
29.8 Verbs with First and Second Aorist Forms
When a verb has both types of aorist, it is often the case that the FIRST AORIST is TRANSITIVE, and the SECOND AORIST is INTRANSITIVE. For example:
- ἵστημι, στήσω, ἔστησα/ἔστην stand
- ἔστησα I stood (something) up.
- ἔστην I stood up.
- φύω, φύσω, ἔφυσα/ἔφυν produce, grow
- ἔφυσα I grew (something).
- ἔφυν I grew.
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