Question 1

Why is the verb soit instead of est here?

Accepted Answer

The conjunction avant que (before) always requires the subjunctive mood. This is because it introduces an event that hasn't happened yet, making it an anticipated action rather than a stated fact. That is why we use soit (the subjunctive form of être) instead of the normal present tense est.

Question 2

Could I use the infinitive here and say avant d'être prête?

Accepted Answer

No, because the two halves of the sentence have different subjects. "I" (je) am adding the vanilla, but "the dough" (la pâte) is getting ready. You must use avant que + subjunctive when the subjects are different. You only use avant de + infinitive when the same subject performs both actions (for example: J'attends avant d'ajouter la vanille - I wait before adding the vanilla).

Question 3

I have sometimes seen an extra ne after avant que. Why isn't there one here?

Accepted Answer

You are thinking of the formal "dummy" ne (called the ne explétif), which is often placed after avant que (as in, avant que la pâte ne soit prête). It doesn't mean "not" and doesn't change the meaning of the sentence. While common in formal writing, it is entirely optional and usually dropped in everyday French, which is why it is left out here!

Question 4

Why does prête have an e at the end?

Accepted Answer

In French, adjectives must agree in gender with the noun they describe. Because la pâte (the dough) is a feminine noun, the adjective meaning "ready" must take its feminine form, changing from prêt to prête.

Je n'ajoute jamais la vanille avant que la pâte soit prête.

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