TIME EXPRESSION

1. ON

1.1. Days of the week

1.1.1. The concert is on santurday

2. AT

2.1. Time of day

2.1.1. The concert starts at 8.00 pm. I went to be at midningnt

3. IN

3.1. Morning, Ofternoon, Evering.

3.1.1. I´m graduating in summer. She was born in 1989

4. EVERY

4.1. Period of wadther

4.1.1. The play soccer every weekend