The verbs of most aspect pairs differ in one of two ways: by prefix or by suffix. In prefix pairs, the perfective verb has an added prefix—for example, the imperfective psát (to write, to be writing) compared with the perfective napsat (to write down, to finish writing). The most common prefixes are na-, o-, po-, s-, u-, vy-, z- and za-. In suffix pairs, a different infinitive ending is added to the perfective stem; for example, the perfective verbs koupit (to buy) and prodat (to sell) have the imperfective forms kupovat and prodávat. Imperfective verbs may undergo further morphology to make other imperfective verbs (iterative and frequentative forms), denoting repeated or regular action. The verb jít (to go) has the iterative form chodit (to go repeatedly) and the frequentative form chodívat (to go regularly). COUNT 5
QSN1 How many ways can a verb in an aspect pair differ? ANS1 two ways QSN2 What does a perfective verb have added in prefix pairs? ANS2 an added prefix QSN3 What is added to the ending in suffix pairs? ANS3 different infinitive ending QSN4 What can imperfective verb undergo to make other imperfective verbs? ANS4 further morphology QSN5 What type of action can second level morphed imperfective verbs denote? ANS5 repeated or regular action