He has grown old and started to use a cane.

We shot a movie over the weekend.

This project has the potential to bring actual profit.

He demonstrated how to use the new guitar.

This water needs to be desalted.

In this area, they desalinate seawater to make it drinkable.

He resigned because the chess game became difficult.

He is the most respected master craftsman in this area.

The doctor instructed him on the appropriate dosage.

He was playing by swinging the tree branch.