can or can't​

1 Sam can't play tennis

2 We can't swim

3 My cousin can't ride a bicycle

4 Can you play hockey?

5 Can your dad play golf?

6 My parents can play chess

7 My best friend can't skate

8 Can your friend ski?

9 My teacher can play basketball

10 I can play hockey(тут неопределено, потому выбрал can)

PS: can - можешь, can't - не можешь

Собственно "+" это можешь и "-" не можешь

В вопросах задают can - можешь ли ты?