Questions & Answers about Dubta que el desviador funcioni bé.
Because dubtar que normally requires the subjunctive in Catalan when you are expressing doubt or uncertainty.
- funciona = present indicative
- funcioni = present subjunctive
So in Dubta que el desviador funcioni bé, the clause after que is not presented as a fact, but as something doubtful.
Dubta is the 3rd person singular present indicative of dubtar.
Depending on context, it can mean:
- he doubts
- she doubts
- it doubts
- you doubt (formal singular, vostè)
Catalan often leaves the subject pronoun unstated, so you have to get it from context.
Because Catalan is a pro-drop language, like Spanish or Italian. That means subject pronouns are often omitted when the verb ending already shows the person and number.
So instead of saying Ell dubta que..., Catalan very naturally just says Dubta que....