Simple present change to simple past and past participle
1.bite
2.blow
3.break
4.build
5.buy
6.catch
7.draw
8.drink
9.drive
10.eat
11.fall
12.feal
13.fly
14.go
15.hide
16.know
17.make
18.ride
19. sing
20.swim
21.take
22.teach
23.think
24.throw
25.understand

bit, blew, broke, builder, buyer, flew drove, caught, drew, fell, flew, gone, made, ate, knew, sang, taught, and hidden.

Explanation:

explanation:

it refers to the definition of full-contact sports, where the condition is that the sport must have athletes must "purposely collide with each other