1)Missed or hit ball “off-Centre”

A) Watch-ball say “hit”

2)Ball went too high or too long

A) Contact Point too late
B) Racquet face not “open” to ball
C) Preparation too late
D) Wrong Grip

3)Ball went into net

A) Contact Point too early
B) Racquet face too closed
C) Swing too early
D) Wrong Grip

4)Ball went  wide

A) Hitting position not side on