-ire

Etymology
From.

Usage notes

 * There are two groups of regular -ire verbs, one of which inserts isc between the stem and ending in the present tenses and in the imperative. these form the great majority of regular -ire verbs
 * See ' and ' as examples of the conjugation of -ire verbs do and do not insert isc respectively
 * The verb does not count, being technically an irregular second conjugation verb whose "normal" base is dic-.  (to do), has a similar phenomenon.

Conjugation
(with -isc- form)

(without -isc- form)


 * verbs that do not insert


 * verbs that can be used with or without insertion of


 * Irregular verbs

Etymology
From Proto-Italic *-jezi, in which z changed into r due to rhotacism. Formed by analogy with.