I can pounce you can pounce he can pounce we can pounce you can pounce they can pounce
V-ing form
I can be pouncing you can be pouncing he can be pouncing we can be pouncing you can be pouncing they can be pouncing
Perfect
I can have pounced you can have pounced he can have pounced we can have pounced you can have pounced they can have pounced
V-ing perfect
I can have been pouncing you can have been pouncing he can have been pouncing we can have been pouncing you can have been pouncing they can have been pouncing
Negation
Simple form
I cannot pounce you cannot pounce he cannot pounce we cannot pounce you cannot pounce they cannot pounce
V-ing form
I cannot be pouncing you cannot be pouncing he cannot be pouncing we cannot be pouncing you cannot be pouncing they cannot be pouncing
Perfect
I cannot have pounced you cannot have pounced he cannot have pounced we cannot have pounced you cannot have pounced they cannot have pounced
V-ing perfect
I cannot have been pouncing you cannot have been pouncing he cannot have been pouncing we cannot have been pouncing you cannot have been pouncing they cannot have been pouncing
Interrogative form
Simple form
can I pounce? can you pounce? can he pounce? can we pounce? can you pounce? can they pounce?
V-ing form
can I be pouncing? can you be pouncing? can he be pouncing? can we be pouncing? can you be pouncing? can they be pouncing?
Perfect
can I have pounced? can you have pounced? can he have pounced? can we have pounced? can you have pounced? can they have pounced?
V-ing perfect
can I have been pouncing? can you have been pouncing? can he have been pouncing? can we have been pouncing? can you have been pouncing? can they have been pouncing?
Interro-negative form
Simple form
can I not pounce? can you not pounce? can he not pounce? can we not pounce? can you not pounce? can they not pounce?
V-ing form
can I not be pouncing? can you not be pouncing? can he not be pouncing? can we not be pouncing? can you not be pouncing? can they not be pouncing?
Perfect
can I not have pounced? can you not have pounced? can he not have pounced? can we not have pounced? can you not have pounced? can they not have pounced?
V-ing perfect
can I not have been pouncing? can you not have been pouncing? can he not have been pouncing? can we not have been pouncing? can you not have been pouncing? can they not have been pouncing?