French Phrase
Ça ne s'allume pas.
Meaning
Literally “It does not light itself up.” In everyday speech it means that a device, lamp, phone, etc., won’t turn on. The speaker is pointing out a malfunction or a missing power source.
When to use
Use this sentence when you’re trying to explain that something that should emit light or power isn’t doing so – a lamp that stays dark, a TV that won’t start, a smartphone that won’t boot, etc. It’s informal; in a formal setting you might replace *ça* with *il*.
✦Grammar Breakdown
Çanes'allumepas
Ça
Demonstrative pronoun meaning “this/that”. It is informal and can refer to an object, situation or idea.
ne … pas
Standard French negation. Both parts are required in written French; in spoken informal French the “ne” is often dropped.
s'
Elided form of the reflexive pronoun *se* before a vowel or mute *h*. Here it makes the verb reflexive: *s'allumer* = “to turn on (itself)”.
allume
3rd‑person singular present of *allumer* (to turn on, to light).
pas
Negation particle that pairs with *ne* to complete the negative construction.
🗨In Conversation
Ça ne s'allume pas.
It won’t turn on.
As‑tu vérifié le branchement ?
Did you check the plug?
✕Common Mistakes
Ça s'allume pas.
In standard French you need both *ne* and *pas*; dropping *ne* is informal and not appropriate for learning contexts.
Ça ne allume pas.
The reflexive pronoun *se* (elided to *s'*) is required; without it the verb loses its reflexive meaning.
Ça ne s'allume pas.
Using *ça* in a very formal written report can sound too casual; replace with *il* for a neutral tone.
↔Alternatives
Il ne s'allume pas.
It doesn’t turn on.
Il ne fonctionne pas.
It doesn’t work.
Il ne démarre pas.
It doesn’t start.
Cultural Tip
In French, *ça* is very common in spoken language and can refer to anything that’s just been mentioned or is obvious in the context. In written or formal speech, native speakers often prefer *il* (or *elle*) for a specific object. Also, the reflexive form *s'allumer* is used for lights, appliances, and even for emotions (e.g., *ça s'allume* meaning “the spark is lit”).