Are you sure vs Do you really think

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

Are you sure

Top 1000 (muito comum)

Do you really think

Top 2000 (comum)
Mais comum: Are you sure
 Are you sureDo you really think
Pronúncia🇬🇧 //ɑːr jʊ ʃʊər//🇺🇸 //ɑr jʊ ʃʊr//🇬🇧 //dʊ jʊ ˈrɪəli θɪŋk//🇺🇸 //du jə ˈrɪli θɪŋk//
SignificadoDo you really know if this is correct?Are you serious about your opinion?
ExemploAre you sure you locked the door?Do you really think this plan will work?
RegistroNeutroNeutro
Quão comumTop 1000 (muito comum)Top 2000 (comum)
Colocaçõesare you sure about, are you sure that, are you sure ofdo you really think, do you really believe, do you truly think
AntônimosAre you uncertain, Are you doubtful, Are you unsureAre you sure that, Don't you believe, Do you doubt, Are you certain
Erros comunsOmitting 'you' and asking just 'sure?', Using a tone that sounds sarcastic., Confusing this with 'Are you certain?' which is more formal.Omitting 'do' in questions (e.g., 'you really think')., Confusing with 'do you actually think'., 'Really' is sometimes misspelled as 'real' in informal writing.
Notas de usoUse when asking someone to confirm their belief. Appropriate in any setting, but avoid if it's too informal for the situation.Used for expressing skepticism or surprise. Often followed by a clarification or objection. This phrase could be too informal for official settings.

Perguntas frequentes: Are you sure vs Do you really think

Qual é a diferença entre Are you sure e Do you really think?

Are you sure: Do you really know if this is correct? Do you really think: Are you serious about your opinion?

Qual é mais comum: Are you sure e Do you really think?

Are you sure é a mais comum no inglês do dia a dia.

Pode mostrar um exemplo de cada?

Are you sure: Are you sure you locked the door? Do you really think: Do you really think this plan will work?

Posso usar Are you sure e Do you really think de forma intercambiável?

Nem sempre. Are you sure e Do you really think 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.