French Phrase
J'ai révisé toute la nuit.
Meaning
The speaker is saying that they studied or reviewed material throughout the entire night, usually implying a last‑minute effort before an exam or important deadline.
When to use
Use this sentence after an exam, when explaining why you’re tired, or when bragging about the amount of work you put in. It’s common in student conversations about preparation.
✦Grammar Breakdown
J'airévisétoutelanuit.
Passé composé with avoir
Formed with the auxiliary 'avoir' + past participle. Here 'ai' is the present of 'avoir' and 'révisé' is the past participle of 'réviser'.
Past participle agreement
When the direct object precedes the verb, the past participle agrees in gender and number; here the object follows, so 'révisé' stays invariable.
toute = all (feminine)
'Toute' agrees with the feminine noun 'nuit'. Using 'tout' (masculine) would be incorrect.
Negation & adverb placement
Adverbs of time like 'toute la nuit' are placed after the verb in passé composé.
🗨In Conversation
Comment s'est passé ton examen?
How did your exam go?
J'ai révisé toute la nuit, alors j'étais prêt.
I studied all night, so I was ready.
✕Common Mistakes
J'ai révisé tout la nuit.
The adjective must agree with the feminine noun 'nuit', so use 'toute'.
Je suis révisé toute la nuit.
The verb 'réviser' uses 'avoir' as its auxiliary, not 'être'.
J'ai révisé toute le nuit.
Both the article and adjective must be feminine: 'la nuit'.
↔Alternatives
J'ai étudié toute la nuit.
I studied all night.
J'ai passé la nuit à réviser.
I spent the night revising.
J'ai fait mes révisions toute la nuit.
I did my revisions all night.
Cultural Tip
Pulling an all‑night study session (une nuit blanche) is a familiar trope among French students, especially before the baccalauréat. While it shows dedication, teachers often advise against it because it can affect memory retention and health. In casual speech, 'toute la nuit' can also be used figuratively to mean 'for a very long time.'

