at
I start work at 8 o’clock
The shops close at 5.30
I can’t sleep at night
on
I don’t work on Sundays
in
I always feel good in the evening
We do not use at/on/in before
this ……..(this morning…..etc) Are you going out this evening?
last ……..(last week……….etc) I went there last week
next……..(next week……. etc) I will go there next week
every….. (every day………etc)