Yes, as long as you don't touch the net or the other side. You can't touch the ball until it crosses the net to your side, but once it crosses over, if it has spin and goes back to the opponent's side, you can and must reach over the net to touch the ball before it's second bounce because you will lose the point if it bounces back on the opponent's side without you touching it.
yes, but if the server swings the racket without hitting the ball, it is a double fault.
tennis
Hitting 2 serves which both land outside the service box
A player can double fault in tennis. A double fault occurs when a player does not successfully place the ball in the opposing square on a serve two consecutive times.
lawn. in table tennis, the other player gets a point on a single fault, whereas in lawn tenns, you get two chances, and your opponent will get the point on the second fault.
Hitting the net full on. Hitting the net and the ball carries on over it. Foot crossing the line when you hit the ball. Hitting the ball full on and it does not land in the field of play.
Foot Fault
In tennis, a let is where a player serves and the ball clips or brushes the top of the net chord and still lands in the serice box, and when this happens, the serve is played again without a fault taking effect in the scoring.
A foot fault occurs when the server steps into the court before hitting the ball. If the server jumps, hits the serve, and lands in the court, then it is acceptable, but if the foot is in the court, while the ball is being served, then it is a foot fault.
There are not "fouls" in tennis, but there are faults and mistakes you can make that will give the opponent the point. A foul in tennis would just be considered any action made by a player that causes the opponent to receive the point for that game. Stepping over the base line before completing your serve is a fault (fowl). Hitting the ball out of bounds (out of the court for doubles; inside or beyond the alleys for singles). Hitting the net with your racket during the game gives the opponent the point.
a service fault in tennis is when you either when you serve and you don't get it over the first line OR you get it out
Table tennis, or Lawn Tennis