Verbs with Both Aspects
Двухвідавыя дзеясловы are both aspects at once: Вучоныя даследуюць возера (are researching) or За адно лета яны даследавалі ўсё возера (researched, completely).
How It Works
Most verbs are either imperfective or perfective. A small group uses one form for both. Examples include:
- даследаваць (research)
- гарантаваць (guarantee)
- атакаваць (attack)
- інфармаваць (inform)
- раніць (wound)
Reading the context. Time words and the situation show the aspect:
- Вучоныя ўжо шмат гадоў даследуюць гэтае возера. (Scientists have been researching this lake for years.) This is ongoing, so it is imperfective.
- За адно лета экспедыцыя даследавала ўсё возера. (In one summer the expedition researched the whole lake.) This is complete, so it is perfective.
The future. Буду даследаваць is always the ongoing future. The simple form даследую can mean I research or I will research, and context decides.
Not every -аваць loanword. Many verbs in -аваць are two-aspect, but not all. Belarusian dictionaries list арганізаваць as perfective only, with the imperfective арганізоўваць. Russian treats организовать as two-aspect, so this is an easy place to slip. When unsure, check whether the dictionary gives an imperfective partner. Such partners are secondary imperfectives.
No prefix needed. These verbs do not need a prefix to become perfective. Даследаваць is already perfective when the context needs it.
Examples (6)
- Вучоныя ўжо шмат гадоў даследуюць гэтае возера.
Scientists have been researching this lake for many years.
Word by Word: Scientists already many years research this lake.
Ongoing: imperfective reading.
- За адно лета экспедыцыя даследавала ўсё возера.
In a single summer, the expedition researched the whole lake.
Word by Word: In one summer expedition researched whole lake.
Complete: perfective reading.
- Мы гарантуем якасць кожнай рэчы.
We guarantee the quality of every item.
Word by Word: We guarantee quality of-every thing.
- Мы будзем інфармаваць вас пра ўсе змены.
We will keep you informed about all changes.
Word by Word: We will inform you about all changes.
- Каманда атакавала ўвесь другі тайм.
The team attacked throughout the second half.
Word by Word: Team attacked whole second half.
- Салдата ранілі ў нагу.
The soldier was wounded in the leg.
Word by Word: Soldier they-wounded in leg.
Common Mistakes
Using буду with a two-aspect verb for a completed result.
За адно лета экспедыцыя будзе даследаваць усё возера.За адно лета экспедыцыя даследуе ўсё возера.За адно лета names the time needed to finish the whole job, so the verb must be perfective. Буду + infinitive is always the ongoing future. Use the simple form даследуе, which here means will research.
Treating арганізаваць as two-aspect for an action in progress.
Зараз мы арганізуем канцэрт.Зараз мы арганізоўваем канцэрт.The intended meaning is We are organizing a concert right now. Belarusian dictionaries list арганізаваць as perfective only, so арганізуем means we will organize. For an ongoing action, use арганізоўваць.
How It Connects
Learn This First
Two-aspect verbs need -аваць verbs and aspect pairs.
Related Patterns
- Verb Aspect
Two-aspect verbs are the exception to the rule that each verb has one aspect.
Level 2 - буду + InfinitiveCompound Future of Imperfective Verbs
Буду + a two-aspect verb always gives the ongoing future.
Level 3 - Secondary Imperfectives
Verbs like арганізаваць are not two-aspect; they form a separate imperfective with -оўва-.
Level 5 - Spelling Loanwords
Most two-aspect verbs are loanwords.
Level 4
Words in This Pattern
Practice Verbs with Both Aspects in Bubblegum
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