We have started the production of new products.

He is working all day long.

He worked hard all day long.

Since it started raining, I opened my umbrella.

It is important to pursue your own happiness.

He makes a living as a freelance designer.

He spends a lot of time for peacekeeping.

In French, the partitive article plays a very important role.

The greater part of the time is spent on work.

This project was partially successful.