This project requires persistence.

We are here to escort the ambassador.

He was hired to escort the important guest.

I stayed at home to watch over my sick grandmother.

She is in charge of watching over the patients at the hospital.

He rang the hand bell in a Buddhist ceremony.

He headed to the library, holding a book under his arm.

He came into the classroom holding a book under his arm.

Kenji is my best friend.

Nobumori is my best friend.