French Phrase
J'ai bossé hier.
Meaning
This phrase uses the verb 'bosser', which is a very common informal synonym for 'travailler'. It describes the act of working in the past tense, specifically referring to the previous day. While informal, it is widely used in both social and casual professional contexts in France.
When to use
Use this phrase when chatting with friends, family, or colleagues you are on familiar terms with. It is perfect for casual conversations about your schedule or explaining why you were busy.
✦Grammar Breakdown
J'aibosséhier
L'élision
The pronoun 'Je' becomes 'J'' before a vowel sound like 'ai' to ensure a smooth flow in speech.
Passé Composé
This tense is formed here with the auxiliary 'avoir' (ai) and the past participle of the verb 'bosser'.
Adverb of Time
'Hier' is a fixed adverb meaning 'yesterday' and usually placed at the end of the clause.
🗨In Conversation
Tu as fait quoi de beau ?
What did you do that was nice?
Pas grand-chose, j'ai bossé hier.
Not much, I worked yesterday.
✕Common Mistakes
J'ai bosser hier.
Use the past participle 'bossé' instead of the infinitive 'bosser' in the passé composé.
Je suis bossé hier.
The verb 'bosser' always takes 'avoir' as its auxiliary verb, not 'être'.
↔Alternatives
J'ai travaillé hier.
I worked yesterday. (Neutral/Standard)
J'ai charbonné hier.
I grinded/worked really hard yesterday. (Slang)
Cultural Tip
In France, 'bosser' is ubiquitous and generally accepted in most workplaces unless the environment is extremely formal. The term originated from the word 'bosse' (hump), referring to the physical effort of bending over work. Using it shows a good grasp of natural, everyday French.