How to use verb (yawning) in sentences?

- Да, - продолжал он, зевая.

"Yes," he went on, yawning.

-- Еще бы! -- заметил, зевая, хозяин.

"Rather!" assented the innkeeper yawning.

- Хорошо! - сказал я, зевая.

"Good!" I said, yawning.