Impossible vs When pigs fly

Quando usar cada um em inglês, com significado, registro e exemplos.

Impossible

Top 1000 (muito comum)A2

When pigs fly

InformalTop 5000 (bastante comum)
Mais formal: ImpossibleMais comum: Impossible
 ImpossibleWhen pigs fly
Pronúncia🇬🇧 /["/ɪmˈpɒsəbl/"]/🇺🇸 /["/ɪmˈpɑːsəbl/"]/🇬🇧 //wɛn pɪɡz flaɪ//🇺🇸 //wɛn pɪɡz flaɪ//
SignificadoNot able to happen or be done.Something that will never happen.
ExemploClimbing that mountain seems impossible without proper training.I'll believe she'll clean her room when pigs fly.
RegistroNeutroInformal
Quão comumTop 1000 (muito comum)Top 5000 (bastante comum)
Nível CEFRA2-
Colocaçõesappear, be, look, absolutely, completely, downright, for, be, become, find somebody, really, absolutely, completelybelieve it when pigs fly, expect it when pigs fly, do it when pigs fly, see it when pigs fly
Antônimospossible, feasible, achievable-
Erros comuns'Impossible' is sometimes confused with 'unbelievable' but they are not the same., Learners might use 'impossible' to describe very challenging tasks instead of things that cannot be done at all., 'Impossible' is often incorrectly combined with less strong modifiers, like 'very impossible'.Used in serious contexts where a straightforward answer is needed., Misunderstood as a literal phrase rather than an idiom., Incorrectly interpreted as hopeful rather than negative.
Notas de usoUse 'impossible' to describe something that cannot be achieved. It’s suitable for both spoken and written English but may be too strong in polite contexts.Used to express that something is impossible or very unlikely. More appropriate in casual conversation than in formal writing.

Perguntas frequentes: Impossible vs When pigs fly

Qual é a diferença entre Impossible e When pigs fly?

Impossible: Not able to happen or be done. When pigs fly: Something that will never happen.

Qual é mais formal: Impossible e When pigs fly?

Impossible é a mais formal entre elas.

Qual é mais comum: Impossible e When pigs fly?

Impossible é a mais comum no inglês do dia a dia.

Pode mostrar um exemplo de cada?

Impossible: Climbing that mountain seems impossible without proper training. When pigs fly: I'll believe she'll clean her room when pigs fly.

Posso usar Impossible e When pigs fly de forma intercambiável?

Nem sempre. Impossible e When pigs fly são relacionadas e às vezes se sobrepõem, mas diferem em registro, frequência e uso, então trocar uma pela outra pode mudar o sentido ou o tom. Veja as diferenças acima antes de substituir.