A2-B1
Prepositions of Time – When?
Time prepositions are used to describe when something happens. Use them to talk about specific times, days, months, and durations.
📘 Key Prepositions by Time Expression
| Preposition | Use | Example |
|---|---|---|
| in | months, years, periods | She was born in July. → Elle est née en juillet. |
| on | specific days/dates | We have class on Monday. → Nous avons cours lundi. |
| at | exact time / moments | The meeting is at 10am. → La réunion est à 10h. |
| since | from past until now | He's worked here since 2021. → Il travaille ici depuis 2021. |
| for | duration | We stayed for two weeks. → Nous sommes restés deux semaines. |
| by | before a deadline | Submit the form by Friday. → Rends le formulaire avant vendredi. |
⚠️ Common Mistakes
❌ I'll come in Monday. → ✅ on Monday
❌ The train is on 8pm. → ✅ at 8pm
❌ I live here since 5 years. → ✅ for 5 years
🧠 Mini Practice
Complete with in / on / at:
- The movie starts ___ 9pm.
- My appointment is ___ Monday.
- We usually go skiing ___ December.
Solutions: at / on / in
✅ Summary
🗓️ Use the right preposition for time:
- in = months/years/periods
- on = days and dates
- at = specific times
- since/for/by = durations and deadlines