New Testament Greek for Beginners

(Based on the book with the same title by Gresham Machen, The MacMillan Company, 1923)

References

111. The personal endings in the middle and passive of the so-called primary tenses are -μαι, -σαι, -ται, -μεθα, -σθε, -νται.

Between the stem and the personal endings is placed, in the present tense, the variable vowel ο/ε (ο standing before μ and ν, ε before other letters). The second person singular, λύῃ, is a shortened form instead of λύεσαι.

An alternative form for λύῃ is λύει. But the former seems to be preferred in the New Testament.