There are three types of verbs. At the moment we are studying the first type.

The verb eiti (to go) belongs to the first type. You must pay strict attention to the 3rd person of all verbs (jis, ji, jie, jos - he, she, they). Remember eiti?

jis, ji, jie, jos eina (he, she, they go)

Please notice the stem and the ending of this word (ein + a), because a is the ending of the first type. It is the way to distinguish first type verbs! When you add other endings to the stem (ein), you derive other persons:

ein + u = einu (I go)
ein + i = eini (you go)
ein + a = eina (he, she, they go)
ein + ame = einame (we go)
ein + ate = einate (you go)

u, i, a, ame, ate are the present tense endings of first type verbs.