1. (at the moment)
He is studying at the moment.
2. (on Sundays)
We usually go to the park on Sundays.
3. (in the summer)
In the summer, we love to go to the beach.
4. (always)
She always wakes up early.
5. (right now)
I am eating dinner right now.
6. (in the winter)
In the winter, it often snows here.
7. (never)
He never forgets his keys.