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 cannot bounce you cannot bounce she cannot bounce we cannot bounce you cannot bounce they cannot bounce
V-ing form
I cannot be bouncing you cannot be bouncing she cannot be bouncing we cannot be bouncing you cannot be bouncing they cannot be bouncing
Perfect
I cannot have bounced you cannot have bounced she cannot have bounced we cannot have bounced you cannot have bounced they cannot have bounced
V-ing perfect
I cannot have been bouncing you cannot have been bouncing she cannot have been bouncing we cannot have been bouncing you cannot have been bouncing they cannot 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 I not bounce? can you not bounce? can she not bounce? can we not bounce? can you not bounce? can they not bounce?
V-ing form
can I not be bouncing? can you not be bouncing? can she not be bouncing? can we not be bouncing? can you not be bouncing? can they not be bouncing?
Perfect
can I not have bounced? can you not have bounced? can she not have bounced? can we not have bounced? can you not have bounced? can they not have bounced?
V-ing perfect
can I not have been bouncing? can you not have been bouncing? can she not have been bouncing? can we not have been bouncing? can you not have been bouncing? can they not have been bouncing?