Grappling during engagement; offensive and defensive.
Action 1:
Initiate an attack and bind with the opponent’s arms. Open them in an opposite manner, i.e. one up, one down, and grab his right at the end of the opening move while he is distracted by the staggering and opposite actions. Takedown with a spiral.
The takedown is done correctly if the opponent spins on the ground.
Action 2:
The opponent initiates an attack. Bind his leading arm and draw it inward, while at the same time shoot your left forward and perform a brow-sweep. Your draw and the shooting of your body is going to make him resist by pulling back, and that allows a takedown with a simple push. Your leading arm should lift his up to pin his balance down.
If he does not resist by pulling backward, then you can simply perform an attack with the arm that is drawing him in.
螳螂拳紀要 The Art of Mantis 