How to Say "you doubt" in Spanish
The most common Spanish word for “you doubt” is “dudas” — use 'dudas' when you want to express a lack of certainty or belief in something or someone's words or actions..
dudas
/DOO-das//ˈduðas/

Examples
Si dudas de mi compromiso, solo tienes que decírmelo.
If you doubt my commitment, you just have to tell me.
Veo que dudas sobre qué camino tomar.
I see that you are hesitating about which road to take.
Dudar and Prepositions
When you doubt a person or a fact, you usually need the preposition de (of/about): 'Dudas de lo que dice.' (You doubt what he says.)
Doubt and Subjunctive
The verb dudar (to doubt) often requires the next verb to be in a special form called the Subjunctive, because it expresses uncertainty: 'Dudo que él venga.' (I doubt that he comes.)
Forgetting 'de'
Mistake: “Dudas su palabra.”
Correction: Dudas de su palabra. (The verb *dudar* often demands the preposition *de*.)
sospechas
so-SPEH-chas/soˈspe.tʃas/

Examples
¿Tú sospechas algo de lo que dijo Juan?
Do you suspect anything about what Juan said?
Si sospechas que algo está mal, debes decirlo.
If you suspect that something is wrong, you should say it.
Siempre sospechas de mis intenciones.
You always suspect my intentions.
Regular Verb Pattern
The verb 'sospechar' is a perfectly regular '-ar' verb. Once you know the pattern for a verb like 'hablar' (to talk), you know how to conjugate 'sospechar' in all tenses!
Using the wrong preposition
Mistake: “Sospecho en él. (I suspect in him.)”
Correction: Sospecho de él. (I suspect him/I suspect of him.) The verb 'sospechar' usually needs the small word 'de' (of/about) before the person or thing you doubt.
Dudas vs. Sospechas
Related Translations
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