He was in a sickbed for a long time.

His grandfather is suffering from Alzheimer's disease.

I decided to take a sick leave.

My grandfather passed away from tuberculosis.

When a leap second is added, the world's clock shifts by one second.

By chance, he met my old friend.

In the early morning, he brewed coffee and started his day.

He completed the project in a week.

I'm always busy during the daytime, and I only have time to rest at night.

He had been working overseas for an extended period of time.