My father is doing business at his own shop.

My father has been running the operations of his company for many years.

We ate dinner at the new restaurant.

We often eat at a family restaurant on weekends.

This restaurant is open now.

My father is self-employed and runs a small restaurant.

This shop is in operation every day.

He is operating his own restaurant.

I am working now.

This is the busiest time up to this very moment.