I don't know vs I'm not really sure yet

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

I don't know

Top 1000 (muito comum)

I'm not really sure yet

Top 1000 (muito comum)
 I don't knowI'm not really sure yet
Pronúncia🇬🇧 //aɪ dəʊnt nəʊ//🇺🇸 //aɪ doʊnt noʊ//🇬🇧 //aɪm nɒt ˈrɪəli ʃʊə jɛt//🇺🇸 //aɪm nɑt ˈrɪəli ʃʊr jɛt//
SignificadoNão tenho certeza.I am not sure.Não sei ao certo agora.I don't know for certain right now.
ExemploWhat time is the meeting? I don't know.I'm not really sure yet what time the meeting starts.
RegistroNeutroNeutro
Quão comumTop 1000 (muito comum)Top 1000 (muito comum)
ColocaçõesI don't know what, I don't know why, I don't know howI'm not sure yet about that, I'm not really sure yet how to proceed, I'm not sure yet what to think
AntônimosI know, I am sure, I understand-
Erros comunsUsing it too formally in professional settings., Saying 'I not know' instead of 'I don't know'., Confusing it with 'I don't know how'.Using it too formally in business meetings., Confusing it with 'I'm sure' which means the opposite., Omitting 'yet' and saying 'I'm not really sure'.
Notas de usoUse em conversas quando não tiver certeza de uma resposta. Evite em situações formais onde se espera uma resposta.Use in conversations when unsure about an answer. Avoid in formal situations where providing a response is expected.Use esta frase em conversas casuais ao expressar incerteza. Evite em contextos formais ou acadêmicos.Use this phrase in casual conversations when expressing uncertainty. Avoid in formal or academic contexts.

Veja em clipes reais

I don't know
I'm not really sure yet

Perguntas frequentes: I don't know vs I'm not really sure yet

Qual é a diferença entre I don't know e I'm not really sure yet?

I don't know: I am not sure. I'm not really sure yet: I don't know for certain right now.

Pode mostrar um exemplo de cada?

I don't know: What time is the meeting? I don't know. I'm not really sure yet: I'm not really sure yet what time the meeting starts.

Posso usar I don't know e I'm not really sure yet de forma intercambiável?

Nem sempre. I don't know e I'm not really sure yet 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.

Comparações relacionadas