protest too much

Translations
слишком много протестовать
He insists he's not guilty, but sometimes I think he protests too much.
Он настаивает, что не виновен, но иногда я думаю, что он слишком много протестует.
Definitions
To 'protest too much' refers to someone denying something so emphatically or frequently that it suggests the opposite may be true, implying that their strong denials actually reveal their guilt or true feelings. The phrase originates from Shakespeare's play 'Hamlet.'
Words
protest

verb
протестовать
too

adverb
слишком