Typically it's asserted that Russian verbs exist as aspectual “pairs” (cf., Vinogradov 1938; Šaxmatov 1941; Bondarko 1983; Čertkova 1996; Zaliznjak & Šmelev 2000). The “pair” design states that Russian verbs (aside from the faulty perfective and imperfective isolates and biaspectual/anaspectual verbs) exist as “pairs” consisting of a perfective and http://nubecbd.canariblogs.com/a-secret-weapon-for-http-wiki-sandship-rockbitegames-com-index-php-user-marlaroller-13023872