Spanish Phrase
Mantén las puertas con llave mientras conduces.
Meaning
The sentence is a safety instruction telling the listener to keep the car doors locked during the act of driving. It stresses the importance of securing the vehicle to prevent theft or accidental opening.
When to use
Use this phrase when giving driving‑safety advice, during a driving lesson, or when reminding a passenger to lock the doors before setting off. It works both in formal instruction and casual conversation.
✦Grammar Breakdown
Manténlaspuertasconllavemientrasconduces
Imperative (tú) – Mantén
Use the second‑person singular imperative of *mantener* (Mantén) to give a direct command or advice.
Definite article + noun – las puertas
The article *las* agrees in gender and number with *puertas* (feminine plural).
Prepositional phrase – con llave
The construction *con + noun* indicates the means; *con llave* means ‘with the lock engaged’ or ‘locked’.
Temporal conjunction – mientras
While/as you do something; it introduces a simultaneous action.
Present indicative (tú) – conduces
Second‑person singular present of *conducir*; used after *mientras* to describe an ongoing action.
Verb‑noun collocation – mantener + con + noun
In Spanish you can keep something in a certain state with *mantener* + *con* + noun (e.g., *mantener la puerta con llave*).
🗨In Conversation
¿Debo cerrar las puertas antes de salir?
Should I close the doors before we leave?
Sí, mantén las puertas con llave mientras conduces.
Yes, keep the doors locked while you drive.
✕Common Mistakes
Cierra las puertas mientras conduces.
Using *cerrar* alone only means ‘to close’, not necessarily ‘to lock’. The safety nuance is lost.
Mantén las puertas con llave mientras manejas.
*Manejar* is correct in many regions, but the original phrase uses *conducir*; mixing verbs can sound inconsistent in a single sentence.
Mantén las puertas con llaves mientras conduces.
The noun should stay singular (*llave*) because it refers to the lock mechanism, not multiple keys.
↔Alternatives
Cierra las puertas con llave al conducir.
Close the doors with the lock on when you drive.
Asegúrate de que las puertas estén cerradas con llave mientras manejas.
Make sure the doors are locked while you’re driving.
No dejes las puertas sin llave cuando conduzcas.
Don’t leave the doors unlocked when you drive.
Cultural Tip
In many Spanish‑speaking countries, especially in big cities, it’s common practice to lock car doors even while the vehicle is moving to deter theft. The phrase *con llave* is preferred over simply *cerradas* because it explicitly refers to the lock being engaged, not just the door being shut.