In a rally, the return direction from you have to be determined by the period from an opponent's hitting point to a landing point on your court. To visualize the next rally by imaging the course to return. The person who drew certainly the next image can dominate the game.
It is important to return the ball in the direction where is no opponent. However, you cannot see the opponent and the ball at the same time. The ball is returned to your court at fast speed. In addition to chasing the ball, the brain is thinking that the direction in which the ball was rubbed with the opponent's racket and how to corespond by your racket, so there is no time to imagine the return course by looking at the opponent's position.
Actually, even without looking at the opponent, you can find the opponent direction by simply looking at the ball trajectory. The opponent is in the direction in which the ball has come. The direction that has no opponent, that is the V-direction from the direction which the ball has come.
In other words, if the ball you throw is returned, the opponent is on the throwing side, so the next return direction is a V-shape from the previous throw direction. Always change the throwing direction.
If you want to receive the service ball from the opponent wisely, it is important to decide the first return direction and the second return direction in advance.
Also, if you want to attack smartly from the service, the service ball and the third ball will attack in a V shape.
In early rallies, since the V-direction is narrow, so the opponent stands in the place where they can reach the ball immediately, and the return time of the ball is also short. However, as you have the opponent moved to the left or right, and the opponent will be difficult to return to the initial position due to the inertial force of his / her weight, and the course with no opponent spreads. The opponent's return time also becomes longer, and you can obtain a time to observe the opponent sufficiently. In the end, you can break through where there is no opponent.
The reason why you were punched out, the opponent could drew the exact image earlier than you. In order to avoid the opponent's first attack, you need to launch the V-direction before the opponent does.