Again, the endings are comparable with their pres middle counterparts. The aorist pass has a variety of forms. There are also some verbs which employ the aorist passive inflections in an active sense. The subjunctive has the same endings as the pres. In origin, this inflection appears to be a locative suffix.
Reduplication applies throughout the perfect.
Both reduplication and o-grade roots are found elsewhere in the IE languages. Active The endings of the indic act are partly inherited from the original IE perf and partly extended from other forms of the verb. The 1st and 3rd sg and the 1st and 2nd pl indic are original. Other endings are identical to their pres equivalents apart from the imper. The participle agrees in number with the subject.