Prepositions of time are words that indicate when an event occurred or will occur in relation to another event in time. Some common prepositions of time include:
At is used to specify a particular point in time.
- She has a meeting at 9:00 AM.
- We'll meet at the park tomorrow.
In is used to indicate a period of time, such as a month, year, season, or part of the day.
- I will go to Europe in July.
- He likes to read in the evening.
On is used to specify days and dates.
- The party is on Saturday.
- Our anniversary is on June 15th.
During is used to indicate the duration of an event or action within a particular time frame.
- It rained during the night.
- She fell asleep during the movie.
For is used to specify the duration of an action or event.
- They have been married for ten years.
- I will be on vacation for two weeks.
Since is used to specify the starting point of a period of time.
- She has been studying English since 2015.
- He has worked here since he graduated.
Rules for using prepositions of time:
- Use "at" for specific times, "in" for periods of time, and "on" for days and dates.
- Use "during" to indicate when something happens within a particular time frame. Use a noun after during.
- Use "for" to indicate the duration of an action or event.
- Use "since" to specify the starting point of a period of time.