He accurately measured the lumber using a carpenter's square.

He injured his toe.

He fractured his phalanx.

He smoothly played the fingerboard of the guitar.

He is doing a special exercise to strengthen his flexor carpi ulnaris.

The flexor carpi radialis is an important muscle for bending the wrist.

He likes to take a walk in the park at dusk.

Well then, I'm off.

He admitted that it is difficult to execute the plan, saying 'it is easier said than done.'

My younger brother goes to a school for special needs.