I can dance you can dance he can dance we can dance you can dance they can dance
V-ing form
I can be dancing you can be dancing he can be dancing we can be dancing you can be dancing they can be dancing
Perfect
I can have danced you can have danced he can have danced we can have danced you can have danced they can have danced
V-ing perfect
I can have been dancing you can have been dancing he can have been dancing we can have been dancing you can have been dancing they can have been dancing
Negation
Simple form
I can't dance you can't dance he can't dance we can't dance you can't dance they can't dance
V-ing form
I can't be dancing you can't be dancing he can't be dancing we can't be dancing you can't be dancing they can't be dancing
Perfect
I can't have danced you can't have danced he can't have danced we can't have danced you can't have danced they can't have danced
V-ing perfect
I can't have been dancing you can't have been dancing he can't have been dancing we can't have been dancing you can't have been dancing they can't have been dancing
Interrogative form
Simple form
can I dance? can you dance? can he dance? can we dance? can you dance? can they dance?
V-ing form
can I be dancing? can you be dancing? can he be dancing? can we be dancing? can you be dancing? can they be dancing?
Perfect
can I have danced? can you have danced? can he have danced? can we have danced? can you have danced? can they have danced?
V-ing perfect
can I have been dancing? can you have been dancing? can he have been dancing? can we have been dancing? can you have been dancing? can they have been dancing?
Interro-negative form
Simple form
can't I dance? can't you dance? can't he dance? can't we dance? can't you dance? can't they dance?
V-ing form
can't I be dancing? can't you be dancing? can't he be dancing? can't we be dancing? can't you be dancing? can't they be dancing?
Perfect
can't I have danced? can't you have danced? can't he have danced? can't we have danced? can't you have danced? can't they have danced?
V-ing perfect
can't I have been dancing? can't you have been dancing? can't he have been dancing? can't we have been dancing? can't you have been dancing? can't they have been dancing?