Many large corporations are saving taxes by using tax havens.

The use of this service is free.

He works at a large company.

I paid my taxes for this year.

He spends a lot of time studying.

He reads a lot of books.

We started cooking for ourselves to save money.

We should refrain from using electricity to economize on energy.

We have a duty to pay taxes.

He always makes excuses to evade responsibility.