Present:           stem +            ω    εις     ει   ομεν  ετε  ουσι(ν)
                   stem +            ομαι εσαι(ῃ) εται ομεθα εσθε ονται
Future:            stem +        σ + present endings
Imperfect: ἐ +     stem +            ον   ες      ε(ν) ομεν  ετε  ον
           ἐ +     stem +            ομην εσο(ου) ετο  ομεθα εσθε οντο
Aorist 1:  ἐ +     stem + η/ω* + σ + α    ας      ε(ν) αμεν  ατε  αν
           ἐ +     stem + η/ω* + σ + αμην ασο(ω)  ατο  αμεθα ασθε αντο
Aorist 2:  ἐ + aor.stem +            imperfect endings

* for contract verbs

Observations:
    - two set of endings:
        - active: ω    εις     ει   ομεν  ετε  ουσι(ν)
                  ον   ες      ε(ν) ομεν  ετε  ον
        - middle: ομαι εσαι(ῃ) εται ομεθα εσθε ονται
                  ομην εσο(ου) ετο  ομεθα εσθε οντο
    - pl. 1st/2nd person always stays the same
    - middle [1] to [2] is mostly αι → ο

For augments:
    - if stem starts with a vowel, lenghthen it
        - α/ε/η   → η
        - ᾳ/αι/ει → ῃ
        - ο/ω     → ω
        - αυ/ευ   → ηυ
        - ι/υ     → unchanged
    - if there's a 2-syllable preposotional prefix, drop the vowel at the end