French Phrase
J'ai étudié hier soir.
Meaning
The speaker is saying that they studied last night. The passé composé indicates a completed action that took place at a specific time in the past, highlighted by the adverbial phrase 'hier soir'.
When to use
Use this sentence when you want to tell someone about a study session that happened the previous evening, for example when answering 'Qu'est‑ce que tu as fait hier soir?' or when recounting your day in a conversation.
✦Grammar Breakdown
J'aiétudiéhiersoir
Passé composé (avoir)
The past tense is formed with the auxiliary verb 'avoir' + past participle 'étudié'.
Contraction of je + ai
The subject pronoun 'je' contracts to 'j'' before a vowel or mute h.
Past participle agreement
With 'avoir', the past participle agrees with the direct object only if it precedes the verb; here it does not, so 'étudié' stays masculine singular.
Adverb placement
Time adverbs like 'hier soir' normally follow the verb in passé composé.
🗨In Conversation
Qu'est‑ce que tu as fait hier soir ?
What did you do last night?
J'ai étudié hier soir.
I studied last night.
✕Common Mistakes
Je étudié hier soir.
Missing auxiliary 'avoir'; the passé composé requires 'ai' before the past participle.
Je ai étudié hier soir.
The contraction is required; write 'J'ai' not 'Je ai'.
J'ai étudié hier soires.
Adverb 'soir' does not change; adding an 'e' makes it incorrect.
↔Alternatives
J'ai révisé hier soir.
I reviewed last night.
J'ai fait mes devoirs hier soir.
I did my homework last night.
J'ai passé la soirée à étudier.
I spent the evening studying.
J'ai étudié hier.
I studied yesterday.
Cultural Tip
In everyday French, people often use 'réviser' instead of the more formal 'étudier' when talking about school or exam preparation. Also, remember that passé composé is the default past tense for completed actions; the imperfect would be used only to set a background scene (e.g., 'Je révisais quand le téléphone a sonné').