Learn with a song: "Lemon tree"
Click on the link below to access to the video and the exercise:
https://www.englishexercises.org/makeagame/viewgame.asp?id=2251#a
| at | in | on |
| PRECISE TIME | MONTHS, YEARS, CENTURIES and LONG PERIODS | DAYS and DATES |
| at 3 o'clock | in May | on Sunday |
| at 10.30am | in summer | on Tuesdays |
| at noon | in the summer | on 6 March |
| at dinnertime | in 1990 | on 25 Dec. 2010 |
| at bedtime | in the 1990s | on Christmas Day |
| at sunrise at sunset | in the next century | on Independence Day |
| at night | in the morning, in the afternoon in the evening | on my birthday |
| at the moment | in the past/future | on New Year's Eve |
| Expression | Example |
|---|---|
| at night | The stars shine at night. |
| at the weekend* | I don't usually work at the weekend. |
| at Christmas*/Easter | I stay with my family at Christmas. |
| at the same time | We finished the test at the same time. |
| at present | He's not home at present. Try later. |
| in | on |
| in the morning | on Tuesday morning |
| in the mornings | on Saturday mornings |
| in the afternoon(s) | on Sunday afternoons |
| in the evening(s) | on Monday evening |
| Present | Positive | Negative |
| have to / don't have to | strong obligation (possibly from outside)
| no obligation
|
| must / mustn't | strong obligation (possibly based on the speaker's opinion)
| negative obligation (VERY STRONG)
|
| should / shouldn't | mild obligation or advice
| mild negative obligation or advice
|
| Past | Positive | Negative |
| had to / didn't have to | obligation in the past
| no obligation in the past
|
| must* | changes to 'had to' | - |
| should have + pp / shouldn't have + pp | a past action which didn't happen: the advice / regret is too late
| a past action which didn't happen: the advice / regret is too late
|
Learn with a song: "Lemon tree" Click on the link below to access to the video and the exercise: https://www.englishexe...