Verbs by structure: simple, compound and paired

By structure, verbs are of four kinds: simple, compound, paired and repeated. Simple verbs consist of one stem. Simple root verbs express an action or state in the bare stem: qurmoq (to build), yurmoq (to walk), ketmoq (to go), bilmoq (to know). Simple derived verbs are made from other word classes with word-building suffixes: shod — shodlanmoq (to rejoice), yangi — yangilamoq (to renew), gap — gapirmoq (to speak), guv — guvullamoq (to hum), tez — tezlamoq (to speed up). A simple verb may carry form suffixes such as voice or tense, but it still has just one stem: qurildi, yurishdi.