At both the top of the circle and at the bottom, the ball experiences two forces, gravity and tension of the string pulling it toward the center of the circle.
(the ball; experiences; two forces, gravity and tension of the string; L:At both the top of the circle and at the bottom) (the string; pulling; it; toward the center of the circle)
the ball the string
experiences pulling
two forces, gravity and tension of the string L:At both the top of the circle and at the bottom
it toward the center of the circle