For a large proportion of Nepali verbs—including both C-verbs (stems ending in a consonant) and V-verbs (stems ending in a vowel)—the stem used in the present also serves as the stem in the simple past. Morphologically, a practical default procedure is to take the dictionary (citation) form ending in –नु (-nu) and remove –नु, yielding the verb’s working stem/base. In the simple past, this base typically remains unchanged; past tense is expressed by attaching a subject-agreeing past suffix (e.g., -एँ, -यो, -ए), which encodes person and number (and, in some third-person contexts, gender).
Table 9.4.9 – Regular Past Stems (C-Verbs and V-Verbs)
Verbs whose past stem is the same as the basic stem (drop –nu, then add endings).
| Dictionary form | Present stem (base) | Past stem | Example: 3rd sg past | English |
|---|---|---|---|---|
| बस्नु (basnu) | बस- (bas-) | बस- (bas-) | बस्यो (basyo) | to sit |
| खेल्नु (khelnu) | खेल- (khel-) | खेल- (khel-) | खेल्यो (khelyo) | to play |
| बोल्नु (bolnu) | बोल- (bol-) | बोल- (bol-) | बोल्यो (bolyo) | to speak / to talk |
| खानु (khānu) | खा- (khā-) | खा- (khā-) | खायो (khāyo) | to eat |
| दिनु (dinu) | दि- (di-) | दि- (di-) | दियो (diyo) | to give |
| लिनु (linu) | लि- (li-) | लि- (li-) | लियो (liyo) | to take |