We often have picnics by the river on weekends.

We have a picnic by the river every weekend.

He visits our store every week.

Last night, a strong lightning roared.

He always greets politely.

Suddenly, a severe thunderstorm hit the town.

He treats us as a big friend.

He was unemployed for a long time, but finally found a new job.

He lost his job last year due to the company's restructuring.

This annual fish matures within less than a year of being born.