будто vs будто бы
budto vs budto by — as if/that vs allegedly, supposedly
Register: neutral
What it really means
Будто can introduce a comparison (“as if”) or a reported proposition (“that,” often literary). Будто бы adds the particle бы and commonly marks unconfirmed or distancing hearsay: “supposedly” or “allegedly.” In comparison clauses, будто бы can also mean “as though,” with a more hypothetical or emphatic flavor.
Examples in natural speech
Он смотрел, будто ничего не произошло.
He looked as if nothing had happened.
Она сказала, будто забыла ключи.
She said that she had forgotten the keys.
Будто бы поезд уже ушёл.
Supposedly, the train has already left.
Он говорил, будто бы всё знал заранее.
He spoke as though he had known everything beforehand.
Будто бы это невозможно.
As if that were impossible.
Common mistakes
Do not treat будто бы as a stronger factual assertion: it often distances the speaker from the report. In a neutral factual report, что is clearer than будто; in a comparison, keep the comma before the будто-clause.
Memory tip
Бы adds a veil of “would/so they say” around будто.
Frequently asked questions
Does будто always express doubt?
No. In будто ничего не случилось it introduces an imagined appearance; doubt comes from context, especially with будто бы.
Can будто replace что after сказать?
It can in literary or expressive speech, but что is the ordinary neutral complementizer.
Why is бы not the past tense here?
In будто бы, бы is a particle marking hypothetical or reported distance, not a verb ending.
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