Je ne sais pas combien de temps je passerai à préparer le dîner.

I do not know how much time I will spend preparing dinner.

Breakdown of Je ne sais pas combien de temps je passerai à préparer le dîner.

• je: I
• ne ... pas: not
• à: to
• préparer: to prepare
• le dîner: the dinner
• savoir: to know
• combien: how much
• le temps: the time
• passer: to spend

Questions & Answers about Je ne sais pas combien de temps je passerai à préparer le dîner.

Why is the future tense used in this sentence?

The verb passerai is in the future tense, indicating that the action—spending time preparing dinner—has not yet occurred. This usage shows that the speaker is referring to a future event and is uncertain about its duration.

How is the future tense formed for the verb passer in this example?

For regular -er verbs like passer, the future tense is formed by taking the infinitive and adding the appropriate ending. In the first person singular, you add -ai to the infinitive, resulting in passerai.

What role does the phrase combien de temps play in the sentence?

The expression combien de temps means how much time or how long and functions as an indirect interrogative phrase. It sets up an embedded question regarding the duration of the upcoming action without requiring a question mark at the end of the sentence.

Why is the construction à préparer le dîner used after the future verb?

In French, when expressing the idea of “spending time doing something,” the construction passer du temps à + [infinitive] is standard. Here, à préparer le dîner uses the infinitive préparer to indicate the activity for which time will be spent—in this case, preparing dinner.

Why does the sentence employ the full negative structure Je ne sais pas?

Je ne sais pas means I do not know. French typically uses the two-part negation with ne before the verb and pas after it, especially in formal written language. Although in informal speech the ne is sometimes dropped, the complete form is used here to adhere to standard grammatical rules.