verb or noun

the cat eats his treat.

eat is verb or noun ?

Your mother finished early.

mother is noun or verb?

The children were listening to the story.

children is noun or verb??

Dad climbed the stairs quickly.

Climbed is verb or noun??

Mark and Erik walk to the park.

walk is verb or noun?

The box is empty.

box is noun or verb?

We run back home for dinner.

run is verb or noun?

The boy jump.

jump is a noun or verb?

The students read.

read is a noun or verb?

The car runs slowly.

runs is a noun or verb?