 
 <prompt> Wetin e mean to dey run continuously - like fridge? Given di last question, write one context wey get di answer. E fit be 1 - 20 sentences. Context: <response>: The verbs wey dey form aspect pairs dey different for two ways: by prefix or by suffix. For prefix pairs, the perfective verb get extra prefix—for example, the imperfective psát (to write, to be writing) compared with the perfective napsat (to write down, to finish writing). The common prefixes na-, o-, po-, s-, u-, vy-, z- and za-. For suffix pairs, different infinitive ending dey added to the perfective stem; for example, the perfective verbs koupit (to buy) and prodat (to sell) get imperfective forms kupovat and prodávat. Imperfective verbs fit get more morphology to form other imperfective verbs (iterative and frequentative forms), wey dey show repeated or regular action. The verb jít (to go) get the iterative form chodit (to go repeatedly) and the frequentative form chodívat (to go regularly). 