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English definition of “be”

be

auxiliary verb (ALLOW)   /bi/ (present tense am  /æm/ , are  /ɑr/ or is  /ɪz/, past tense was  /wʌz/ or were  /wɜr/) fml
used to tell people they must or should do something: [+ to infinitive] Their mother said they were to play nearby.
(Definition of be auxiliary verb (ALLOW) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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