be on the verge of sleeping;

listen to the pronunciation of be on the verge of sleeping;
Английский Язык - Английский Язык

Определение be on the verge of sleeping; в Английский Язык Английский Язык словарь

on the verge
Very near or close

Every time I thought he was on the verge of telling us, he decided to say something else instead.

be on the verge of sleeping;
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