вадой and вадою, лесу and леса, ля and каля - places where two forms are both correct, and what actually decides between them.
I can choose between variant forms on stylistic and semantic grounds and stay consistent within a text.
Look at these examples. Can you spot the grammar pattern?
Цяпер я жыву ў Мінску, а раней жыў у Гомелі.
These days I live in Minsk; before that I lived in Homiel.
Пачакай хвілінку, я зараз прыйду.
Wait a minute, I am coming right now.
За ноч намяло шмат снегу.
A lot of snow drifted in overnight.
Над вадою падняўся туман.
Mist rose above the water.
Pay attention to the highlighted parts. What do they have in common?
At lower levels a form is right or wrong. At C1 you meet the places where the norm admits both, and the question changes from which is correct to which fits here. That is a stylistic judgement, and it is learnable.
вадой / вадою, рукой / рукою. Both are standard. The longer form is bookish and belongs to poetry, song and elevated prose; the shorter is the everyday one. In folk song the longer form is the norm, partly because it fits the metre.
This one is not free - it is largely semantic, and the split is worth learning:
| -а | -у |
|---|---|
| concrete, countable things | abstractions, materials, collectives |
| стала, дуба, Мінска | снегу, часу, лесу, народу |
Some words take both, with different meanings: з дома - out of the building, з дому - from home.
ля and каля, з and са, у and ва, аб and аба. The longer forms appear before difficult consonant clusters - са мной, ва ўсім - and the choice is phonetic, not stylistic. Ля against каля, however, is free.
Not variants at all, but constantly confused, so it belongs here: цяпер is now, the present period. Зараз is in a moment, immediately ahead. Цяпер я жыву ў Мінску - these days. Зараз прыйду - I am coming right now. Using зараз for the general present is one of the commonest interference errors.
Where Russian would use a present active participle, Belarusian normally prefers a clause with які. Both may be grammatical, but the clause is the natural choice and the participle often reads as translated. This is a variant question where one option is markedly better.
Three questions: Is the difference semantic (then it is not a variant at all)? Is it phonetic (then the context decides)? Is it stylistic (then match the register you are writing in, and be consistent within one text)?
Apply this grammar in C1 course exercises
Practice ExercisesTypical errors: treating the genitive -а and -у as free variation, and using зараз for the general present.
Treating the genitive -а and -у as free
It is largely semantic: снегу, часу, but стала, дуба.
Using зараз for the general present
Цяпер is now in general; зараз is in a moment.
Switching between variants within one text
Pick one register and hold it.
Preferring a participle where a clause is natural
Use які.
Цяпер я жыву ў Мінску, а раней жыў у Гомелі.
These days I live in Minsk; before that I lived in Homiel.
<em>Цяпер</em> for the present period, not <em>зараз</em>.
Пачакай хвілінку, я зараз прыйду.
Wait a minute, I am coming right now.
<em>Зараз</em> for the immediate moment ahead.
За ноч намяло шмат снегу.
A lot of snow drifted in overnight.
A material noun, so the genitive is <em>снегу</em>.
Над вадою падняўся туман.
Mist rose above the water.
The longer instrumental, which suits an elevated description.
Я шукаю чалавека, які ведае гэтую справу.
I am looking for someone who knows this business.
A clause with <em>які</em> rather than a present active participle.
Practice in course
Apply this grammar in C1 course exercises
The current academic reference grammar; the linked edition serves the full text. Cited for its declension section, which sets out the first, second and third declensions, notes that plural-only nouns decline on those same patterns, and treats маці as a noun of its own.
The academic reference grammar behind the phonology, orthoepy and morphology sections: the 32-letter inventory, дж and дз as digraphs rather than letters, and the normative description of akanne and jakanne. A print work; no URL is given, because the only one available is a library catalogue record that carries none of the text.