Questions tagged [aspect]

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6
votes
1answer
202 views

Choosing a perfective prefix

Are there any general rules or common patterns as to what prefix an imperfective verb will take when changed to the perfective? I know that it's usually either з-, про-, по-, or на- but I never can ...
9
votes
2answers
234 views

Do some verbs not have different forms for past perfect and imperfect?

I'm fairly sure that бути doesn't, but are there any others? For example, I can't say I've ever seen знати with prefix. Spanish also has two past tenses. In Spanish all verbs can be conjugated in ...