Using teammates to foul?

[potato]

How would you call the foul when a teammate uses his teammate to foul the opposing team player, whether it's offensive or defensive, for example pushing his teammate bumping into the opponent, would you call it some unsportsmanship technical on the player pushing or the teammate whom got pushed into a foul?

For example B1 pushes B2 into contact with ball handler A1 to stop him from making a shot.

For example Ball handler A1 pushes A2 into B1 who is guarding A1.

For example A1 grabs A2 and pulls him in to block defender B1's path for a not so legal screen (insufficient space or moving screen).