Complex sentence: The stem is formed by removing the "a" and its preceding consonant, and "e" followed is added, followed by the personal endings: menen, menet, menee, menemme, menette, menevät.
Split into simpler sentences: The stem is formed by removing the "a" and its preceding consonant. Then add "e" followed by the personal endings: menen, menet, menee, menemme, menette, menevät.