:Examples of linking verb
I am extremely tired this evening.

My hair looks a mess today.

My head feels fuzzy.

This pizza smells rather strange.

My neighbours sound very angry.

They seem determined to keep me awake tonight.

:Examples of action verb
John talks at inappropriate times.

Because it was starting to rain outside, Mary reached for her umbrella.

Jennifer watched the pretty birds building a nest.

The fireworks exploded in the night sky.

The water churned and boiled over the hot flame.

After sunrise, farmer John worked at his chores.