ἐπίσταμαι I know
Like δύναμαι has a stem ending in α and just adds endings straight to this stem, with no thematic vowel ε or ο inserted between stem and endings.
(except that the 2nd person singular imperfect ἠπίστασο can also contract to ἠπίστω)
Compare:
| Present |
|---|
| wants to |
Who? |
knows |
| βούλ |
ομαι |
I |
ἐπίστ |
αμαι |
|
| βούλ |
ει/ῃ |
you (sg) |
ἐπίστ |
ασαι |
| βούλ |
εται |
he, she, it |
ἐπίστ |
αται |
| βουλ |
όμεθα |
we |
ἐπιστ |
άμεθα |
| βούλ |
εσθε |
you (pl) |
ἐπίστ |
ασθε |
| βούλ |
ονται |
they |
ἐπίστ |
ανται |
| |
| Imperfect |
| wanted to |
Who? |
knew, understood |
| ἐβουλ |
όμην |
I |
ἠπιστ |
άμην |
|
| ἐβούλ |
ου |
you (sg) |
ἠπίστ |
ασο
ω |
| ἐβούλ |
ετο |
he, she, it |
ἠπίστ |
αto |
| ἐβουλ |
όμεθα |
we |
ἠπιστ |
άμεθα |
| ἐβούλ |
εσθε |
you (pl) |
ἠπίστ |
ασθε |
| ἐβούλ |
onto |
they |
ἠπίστ |
αnto |
| |
| Imperative |
| want! |
|
know! understand!! |
| βούλ |
ου [εσο] |
|
ἐπίστ |
ασο |
| βούλ |
εσθε |
|
ἐπίστ |
ασθε |
|
| |
| Infinitive |
| to want to |
|
to know |
| βούλ |
εσθαι |
|
ἐπίστ |
ασθαι |
|
| |
| Participle |
| wanting to |
|
knowing |
| βουλ |
όμενος |
|
ἑπιστ |
άμενος |
|
|