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doubt (EN)
Verb, Substantiv

Verb “doubt”

Infinitiv doubt; er doubts; Prät. doubted; Part. doubted; Ger. doubting
  1. zweifeln
    She doubted whether she had locked the door when she left the house.

Substantiv “doubt”

Sg. doubt, Pl. doubts od. unz.
  1. Zweifel
    Despite the evidence, he harbored doubts about his friend's innocence.