I can bounce you can bounce she can bounce we can bounce you can bounce they can bounce
V-ing form
I can be bouncing you can be bouncing she can be bouncing we can be bouncing you can be bouncing they can be bouncing
Perfect
I can have bounced you can have bounced she can have bounced we can have bounced you can have bounced they can have bounced
V-ing perfect
I can have been bouncing you can have been bouncing she can have been bouncing we can have been bouncing you can have been bouncing they can have been bouncing
Negation
Simple form
I can't bounce you can't bounce she can't bounce we can't bounce you can't bounce they can't bounce
V-ing form
I can't be bouncing you can't be bouncing she can't be bouncing we can't be bouncing you can't be bouncing they can't be bouncing
Perfect
I can't have bounced you can't have bounced she can't have bounced we can't have bounced you can't have bounced they can't have bounced
V-ing perfect
I can't have been bouncing you can't have been bouncing she can't have been bouncing we can't have been bouncing you can't have been bouncing they can't have been bouncing
Interrogative form
Simple form
can I bounce? can you bounce? can she bounce? can we bounce? can you bounce? can they bounce?
V-ing form
can I be bouncing? can you be bouncing? can she be bouncing? can we be bouncing? can you be bouncing? can they be bouncing?
Perfect
can I have bounced? can you have bounced? can she have bounced? can we have bounced? can you have bounced? can they have bounced?
V-ing perfect
can I have been bouncing? can you have been bouncing? can she have been bouncing? can we have been bouncing? can you have been bouncing? can they have been bouncing?
Interro-negative form
Simple form
can't I bounce? can't you bounce? can't she bounce? can't we bounce? can't you bounce? can't they bounce?
V-ing form
can't I be bouncing? can't you be bouncing? can't she be bouncing? can't we be bouncing? can't you be bouncing? can't they be bouncing?
Perfect
can't I have bounced? can't you have bounced? can't she have bounced? can't we have bounced? can't you have bounced? can't they have bounced?
V-ing perfect
can't I have been bouncing? can't you have been bouncing? can't she have been bouncing? can't we have been bouncing? can't you have been bouncing? can't they have been bouncing?