English verb conjugation
CAN WALTZ

Regular verb: waltz - waltzed - waltzed

Affirmation

Simple form	V-ing form
I can waltz you can waltz he can waltz we can waltz you can waltz they can waltz	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	V-ing 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	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	V-ing 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	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	V-ing 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	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	V-ing form
can I waltz? can you waltz? can he waltz? can we waltz? can you waltz? can they waltz?	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	V-ing 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?	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	V-ing 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?	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	V-ing 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?	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?