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...