I didn't know vs I had no idea

Quand utiliser chacun en anglais, avec le sens, le registre et des exemples.

I didn't know

I had no idea

Top 2000 (courant)
 I didn't knowI had no idea
Prononciation🇬🇧 //aɪ həd nɔː ˈɪːdiə//🇺🇸 //aɪ hæd noʊ ˈɪːdiə//
SensJe ne savais rien.I didn't know anything.
Exemple-I had no idea you were coming to the party!
Registre-Neutre
Fréquence-Top 2000 (courant)
Collocations-have no idea, no idea what, no idea how, have no idea where, literally no idea
Erreurs fréquentes-Using 'idea' in the singular when speaking about multiple concepts., Confusing with 'I have no idea' in terms of tense., Omitting 'I' and making it sound like a command.
Notes d'usage-Souvent utilisé pour montrer sa surprise ou son ignorance. Ça marche dans plein de situations, que ce soit entre potes ou dans un contexte plus sérieux.Commonly used to express surprise or lack of knowledge. Suitable in both casual and formal contexts.

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I didn't know
I had no idea

Questions fréquentes : I didn't know vs I had no idea

Quelle est la différence entre I didn't know et I had no idea ?

I didn't know: I had no idea: I didn't know anything.

Puis-je utiliser I didn't know et I had no idea de façon interchangeable ?

Pas toujours. I didn't know et I had no idea sont proches et se recoupent parfois, mais elles diffèrent par le registre, la fréquence et l'usage, donc remplacer l'une par l'autre peut changer le sens ou le ton. Regarde les différences ci-dessus avant de substituer.