He is doing special exercises to strengthen his abductor pollicis brevis.

He is doing special exercises to strengthen his palmaris longus muscle.

He injured his peroneus longus muscle.

He tapped the table with his finger.

He tapped the table with his finger.

My mother is my best friend.

My mother is cooking now.

My mother is my first teacher.

My mother is my first teacher.

My mother is my first teacher.