It has become a habit to clean my room every day.

I remit money to my mother every month.

I need to send money to him.

I felt that his thought was very deep.

He is good at flying an airplane.

They waged war against the enemy country.

I am researching the history of the old name, San Francisco.

In old Japan, peasants used to till the fields and live.

He is making efforts tirelessly for the success of the project.

He is making efforts to make the project successful.