French Phrase
T'as besoin d'un sac ?
Meaning
Literally, "Do you have a need for a bag?" In everyday English it translates to "Do you need a bag?" The phrase is informal and used when offering or checking if someone requires a bag, for example at a store or when packing.
When to use
Use this sentence in casual conversations with friends, family, or shop staff you know well. It’s perfect when you’re about to hand someone a bag, or when you suspect they might need one, such as at the market or airport.
✦Grammar Breakdown
T'asbesoind'unsac
Contraction T'as
In spoken French, "tu as" contracts to "t'as"; the apostrophe replaces the omitted "u" and the space.
Besoin de + noun
"Besoin" is followed by the preposition "de"; when the next word starts with a vowel, "de" elides to "d'".
Indefinite article "un"
Use "un" for a masculine singular noun like "sac"; it signals an unspecified bag.
Rising intonation for yes‑no questions
When the sentence ends with a question mark, raise your pitch at the end to signal a question.
🗨In Conversation
T'as besoin d'un sac ?
Do you need a bag?
Oui, merci. J'ai acheté plein de fruits.
Yes, thanks. I bought a lot of fruit.
✕Common Mistakes
T'as besoin de un sac ?
After "besoin" the preposition "de" must elide before a vowel; say "d'un" not "de un".
T'as besoin à un sac ?
The correct preposition after "besoin" is "de", not "à".
T'as besoin du sac ?
Use the indefinite article "un" for an unspecified bag; "du" would refer to a specific bag already known.
↔Alternatives
Tu as besoin d'un sac ?
Do you need a bag?
Il te faut un sac ?
Do you need a bag?
Tu veux un sac ?
Do you want a bag?
Cultural Tip
The contraction "t'as" signals familiarity; avoid it with strangers, elders, or in formal settings where "Tu as besoin d'un sac ?" is preferred. In many French stores, staff will ask "Vous avez besoin d'un sac ?" using the polite "vous" form. Also, note that French speakers often drop the article in spoken language, saying "T'as besoin d'sac ?" – but this is very colloquial and best kept for advanced learners.