 
 <prompt> Which one of di following no dey part of word: prefix, action or suffix? Given di previous question, write a context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: ```No be all di verbs for most aspect pairs dey differ for one of two ways: by prefix or by suffix. For prefix pairs, di perfective verb get one extra prefix—for example, di imperfective psát (to write, to be writing) compared with di perfective napsat (to write down, to finish writing). Di most common prefixes na-, o-, po-, s-, u-, vy-, z- and za-. For suffix pairs, another infinitive ending dey added to di perfective stem; for example, di perfective verbs koupit (to buy) and prodat (to sell) get di imperfective forms kupovat and prodávat. Imperfective verbs fit undergo further morphology to make other imperfective verbs (iterative and frequentative forms), wey dey show repeated or regular action. Di verb jít (to go) get di iterative form chodit (to go repeatedly) and di frequentative form chodívat (to go regularly).``` 