I can balance you can balance he can balance we can balance you can balance they can balance
V-ing form
I can be balancing you can be balancing he can be balancing we can be balancing you can be balancing they can be balancing
Perfect
I can have balanced you can have balanced he can have balanced we can have balanced you can have balanced they can have balanced
V-ing perfect
I can have been balancing you can have been balancing he can have been balancing we can have been balancing you can have been balancing they can have been balancing
Negation
Simple form
I can't balance you can't balance he can't balance we can't balance you can't balance they can't balance
V-ing form
I can't be balancing you can't be balancing he can't be balancing we can't be balancing you can't be balancing they can't be balancing
Perfect
I can't have balanced you can't have balanced he can't have balanced we can't have balanced you can't have balanced they can't have balanced
V-ing perfect
I can't have been balancing you can't have been balancing he can't have been balancing we can't have been balancing you can't have been balancing they can't have been balancing
Interrogative form
Simple form
can I balance? can you balance? can he balance? can we balance? can you balance? can they balance?
V-ing form
can I be balancing? can you be balancing? can he be balancing? can we be balancing? can you be balancing? can they be balancing?
Perfect
can I have balanced? can you have balanced? can he have balanced? can we have balanced? can you have balanced? can they have balanced?
V-ing perfect
can I have been balancing? can you have been balancing? can he have been balancing? can we have been balancing? can you have been balancing? can they have been balancing?
Interro-negative form
Simple form
can't I balance? can't you balance? can't he balance? can't we balance? can't you balance? can't they balance?
V-ing form
can't I be balancing? can't you be balancing? can't he be balancing? can't we be balancing? can't you be balancing? can't they be balancing?
Perfect
can't I have balanced? can't you have balanced? can't he have balanced? can't we have balanced? can't you have balanced? can't they have balanced?
V-ing perfect
can't I have been balancing? can't you have been balancing? can't he have been balancing? can't we have been balancing? can't you have been balancing? can't they have been balancing?