Need the rule behind this exercise? Read Verb aspect. For the bigger picture, explore Russian grammar.
Aspectual Pairs: Perfective vs Imperfective 1
Practice the crucial distinction between verb aspects
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Browse Verb Aspect practiceQuestion 1
Я уже ___ эту книгу, поэтому могу обсудить финал.
English context
Choose the form that presents the reading as a completed event.
Options
- прочитает
- прочитал
- читаю
- прочитаю
Accepted answers and explanation
Accepted answers
- прочитал
Correct feedback
Perfect! 'Прочитал' shows completed action (perfective aspect).
Grammar rule
Perfective aspect commonly presents an action as bounded or completed; context determines whether that result is in focus.
Question 2
Он долго ___ письмо, но так и не закончил его.
English context
Choose between 'писать' and 'написать' for an unfinished writing process.
Options
- писал
- написал
- пишет
- напишет
Accepted answers and explanation
Accepted answers
- писал
Correct feedback
Correct. 'Долго' focuses on duration, not result.
Grammar rule
Imperfective aspect highlights process or duration.
Question 3
Она наконец ___ задачу.
English context
Choose between 'решать' and 'решить'.
Options
- решала
- решила
- решает
- решит
Accepted answers and explanation
Accepted answers
- решила
Correct feedback
Yes. 'Наконец' implies completion.
Grammar rule
Perfective is used when an action reaches its goal.
Question 4
В детстве я часто ___ в этом парке.
English context
Choose between 'гулять' and 'погулять'.
Options
- гулял
- погулял
- гуляю
- погуляю
Accepted answers and explanation
Accepted answers
- гулял
Correct feedback
Correct. Habitual past actions use imperfective.
Grammar rule
Imperfective is used for repeated or habitual actions.
Question 5
Я сначала ___ ужин, съел его и пошёл спать.
English context
Choose the past-tense form for the completed meal prepared before eating.
Options
- готовлю
- приготовил
- приготовлю
- готовишь
Accepted answers and explanation
Accepted answers
- приготовил
Correct feedback
Correct. The action is finished before the next one.
Grammar rule
Perfective is used for completed actions in sequences.
Question 6
Когда ты ___ этот фильм?
English context
Choose the past-tense form for a completed viewing.
Options
- смотришь
- посмотрел
- посмотришь
- смотрит
Accepted answers and explanation
Accepted answers
- посмотрел
Correct feedback
Correct. The question asks about completed experience.
Grammar rule
Perfective is used here because the question presents the viewing as one bounded, completed event.
Question 7
Он весь вечер ___ музыку, но не дослушал альбом.
English context
Choose between 'слушать' and 'послушать' for an unfinished listening process.
Options
- слушал
- послушал
- слушает
- послушает
Accepted answers and explanation
Accepted answers
- слушал
Correct feedback
Correct. Time span emphasizes process.
Grammar rule
Imperfective emphasizes ongoing activity over time.
Question 8
Я быстро ___ отчёт и отправил его.
English context
Choose the past-tense form for a report completed before it was sent.
Options
- делаю
- сделал
- делать
- сделаешь
Accepted answers and explanation
Accepted answers
- сделал
Correct feedback
Correct. Speed + result implies completion.
Grammar rule
Perfective focuses on achieved outcome.
Question 9
Она каждый день ___ этот вопрос, но окончательного решения так и не приняла.
English context
Choose the imperfective past form for a habitual discussion without a final decision.
Options
- обсуждала
- обсудила
- обсуждает
- обсудит
Accepted answers and explanation
Accepted answers
- обсуждала
Correct feedback
Correct. Here, «каждый день» presents the discussion as a habitual activity, so imperfective «обсуждала» fits.
Grammar rule
Imperfective commonly presents repeated or habitual activity; perfective can also occur for individually completed repetitions when each result is in focus.
Question 10
Вчера мы ___ проект к сроку.
English context
Choose between 'заканчивать' and 'закончить' for a project completed by yesterday's deadline.
Options
- заканчивали
- закончили
- заканчиваем
- закончим
Accepted answers and explanation
Accepted answers
- закончили
Correct feedback
Correct. Deadline implies completed result.
Grammar rule
Perfective presents an action as completed by a specific point; an imperfective form can instead focus on the process leading up to that point.