I can waltz you can waltz he can waltz we can waltz you can waltz they can waltz
V-ing form
I can be waltzing you can be waltzing he can be waltzing we can be waltzing you can be waltzing they can be waltzing
Perfect
I can have waltzed you can have waltzed he can have waltzed we can have waltzed you can have waltzed they can have waltzed
V-ing perfect
I can have been waltzing you can have been waltzing he can have been waltzing we can have been waltzing you can have been waltzing they can have been waltzing
Negation
Simple form
I can't waltz you can't waltz he can't waltz we can't waltz you can't waltz they can't waltz
V-ing form
I can't be waltzing you can't be waltzing he can't be waltzing we can't be waltzing you can't be waltzing they can't be waltzing
Perfect
I can't have waltzed you can't have waltzed he can't have waltzed we can't have waltzed you can't have waltzed they can't have waltzed
V-ing perfect
I can't have been waltzing you can't have been waltzing he can't have been waltzing we can't have been waltzing you can't have been waltzing they can't have been waltzing
Interrogative form
Simple form
can I waltz? can you waltz? can he waltz? can we waltz? can you waltz? can they waltz?
V-ing form
can I be waltzing? can you be waltzing? can he be waltzing? can we be waltzing? can you be waltzing? can they be waltzing?
Perfect
can I have waltzed? can you have waltzed? can he have waltzed? can we have waltzed? can you have waltzed? can they have waltzed?
V-ing perfect
can I have been waltzing? can you have been waltzing? can he have been waltzing? can we have been waltzing? can you have been waltzing? can they have been waltzing?
Interro-negative form
Simple form
can't I waltz? can't you waltz? can't he waltz? can't we waltz? can't you waltz? can't they waltz?
V-ing form
can't I be waltzing? can't you be waltzing? can't he be waltzing? can't we be waltzing? can't you be waltzing? can't they be waltzing?
Perfect
can't I have waltzed? can't you have waltzed? can't he have waltzed? can't we have waltzed? can't you have waltzed? can't they have waltzed?
V-ing perfect
can't I have been waltzing? can't you have been waltzing? can't he have been waltzing? can't we have been waltzing? can't you have been waltzing? can't they have been waltzing?