Dudo que la masa haya fermentado bien porque está muy pegajosa.

Questions & Answers about Dudo que la masa haya fermentado bien porque está muy pegajosa.

Why is haya fermentado used here instead of the indicative ha fermentado?
The verb dudar (to doubt) expresses uncertainty, which triggers the subjunctive mood for the following clause. We use the present perfect subjunctive (haya fermentado) because you are in the present doubting an action that has already taken place.
Why do we use está for "it is very sticky" instead of es?
We use estar because being sticky is the current physical condition of this specific batch of dough. If you used ser (es muy pegajosa), it would imply that this type of dough is permanently or inherently sticky by definition.
Why doesn't the doubt from Dudo que carry over to the end and make it porque esté muy pegajosa?
The conjunction porque (because) introduces a factual reason for your doubt. While you are unsure about the fermentation, you are completely certain that the dough is sticky right now. Since you are declaring a fact, you must use the indicative mood (está).
The word pegajosa means "sticky". Is it related to the verb pegar?
Yes! The verb pegar means "to stick" or "to glue". Adding the ending -ajoso or -ajosa creates an adjective describing a condition or tendency, so pegajosa translates perfectly to "sticky".

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