be not to know
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English
[edit]Verb
[edit]be not to know (third-person singular simple present is not to know, present participle being not to know, simple past was not to know, past participle been not to know)
- (especially in the past) To not have the required information.
- You weren't to know // You couldn't have known.
- How was I to know he wanted me to stay at home all day?
Further reading
[edit]- “be not to know” in Longman Dictionary of Contemporary English, Longman.
- “be not to know”, in OneLook Dictionary Search.