Breakdown of Обвинение было очень серьёзным.
очень
very
быть
to be
серьёзный
serious
обвинение
the accusation, charge (n)
Questions & Answers about Обвинение было очень серьёзным.
Why is серьёзным in the instrumental case instead of the nominative серьёзное?
When an adjective describes the subject using the past tense verb было, Russian often puts that adjective in the instrumental case. It makes the sentence sound a bit more formal, objective, or bookish, which perfectly fits the legal tone of an accusation. The nominative серьёзное is also correct but sounds more everyday and conversational.
Does the instrumental case here mean the accusation was only temporarily serious?
Not exactly. You probably learned that the instrumental with быть indicates a temporary state, like a job you used to have. However, when used with an adjective describing an abstract noun like обвинение, the instrumental is just the standard way to form a formal predicate. It describes what the accusation was like at the time it was made.
What familiar root is inside the word обвинение?
It is built around the root -вин-, which you likely recognize from вина (guilt or fault) and виноват (guilty). By adding the prefix об- and the noun suffix -ение, you get a word that refers to the act of making someone guilty.
Why does the word серьёзным need a soft sign (ь)?
In this word, the soft sign acts as a separator. It tells you not to merge the р directly into the ё. Instead, you pronounce a distinct y-glide between the consonant and the vowel, making sure both sounds remain distinct.
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