I can assail you can assail he can assail we can assail you can assail they can assail
V-ing form
I can be assailing you can be assailing he can be assailing we can be assailing you can be assailing they can be assailing
Perfect
I can have assailed you can have assailed he can have assailed we can have assailed you can have assailed they can have assailed
V-ing perfect
I can have been assailing you can have been assailing he can have been assailing we can have been assailing you can have been assailing they can have been assailing
Negation
Simple form
I can't assail you can't assail he can't assail we can't assail you can't assail they can't assail
V-ing form
I can't be assailing you can't be assailing he can't be assailing we can't be assailing you can't be assailing they can't be assailing
Perfect
I can't have assailed you can't have assailed he can't have assailed we can't have assailed you can't have assailed they can't have assailed
V-ing perfect
I can't have been assailing you can't have been assailing he can't have been assailing we can't have been assailing you can't have been assailing they can't have been assailing
Interrogative form
Simple form
can I assail? can you assail? can he assail? can we assail? can you assail? can they assail?
V-ing form
can I be assailing? can you be assailing? can he be assailing? can we be assailing? can you be assailing? can they be assailing?
Perfect
can I have assailed? can you have assailed? can he have assailed? can we have assailed? can you have assailed? can they have assailed?
V-ing perfect
can I have been assailing? can you have been assailing? can he have been assailing? can we have been assailing? can you have been assailing? can they have been assailing?
Interro-negative form
Simple form
can't I assail? can't you assail? can't he assail? can't we assail? can't you assail? can't they assail?
V-ing form
can't I be assailing? can't you be assailing? can't he be assailing? can't we be assailing? can't you be assailing? can't they be assailing?
Perfect
can't I have assailed? can't you have assailed? can't he have assailed? can't we have assailed? can't you have assailed? can't they have assailed?
V-ing perfect
can't I have been assailing? can't you have been assailing? can't he have been assailing? can't we have been assailing? can't you have been assailing? can't they have been assailing?