can assail
Regular verb: assail - assailed- assailed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can assail
you can assail
he can assail
we can assail
you can assail
they can assail 	I can be assailing
you can be assailing
he can be assailing
we can be assailing
you can be assailing
they can be assailing	I can have assailed
you can have assailed
he can have assailed
we can have assailed
you can have assailed
they can have assailed	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 	V-ing form 	Perfect 	V-ing perfect 	
I cannot assail
you cannot assail
he cannot assail
we cannot assail
you cannot assail
they cannot assail 	I cannot be assailing
you cannot be assailing
he cannot be assailing
we cannot be assailing
you cannot be assailing
they cannot be assailing	I cannot have assailed
you cannot have assailed
he cannot have assailed
we cannot have assailed
you cannot have assailed
they cannot have assailed	I cannot have been assailing
you cannot have been assailing
he cannot have been assailing
we cannot have been assailing
you cannot have been assailing
they cannot have been assailing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I assail?
can you assail?
can he assail?
can we assail?
can you assail?
can they assail? 	can I be assailing?
can you be assailing?
can he be assailing?
can we be assailing?
can you be assailing?
can they be assailing? 	can I have assailed?
can you have assailed?
can he have assailed?
can we have assailed?
can you have assailed?
can they have assailed? 	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 	V-ing form 	Perfect 	V-ing perfect 	
can I not assail?
can you not assail?
can he not assail?
can we not assail?
can you not assail?
can they not assail? 	can I not be assailing?
can you not be assailing?
can he not be assailing?
can we not be assailing?
can you not be assailing?
can they not be assailing? 	can I not have assailed?
can you not have assailed?
can he not have assailed?
can we not have assailed?
can you not have assailed?
can they not have assailed? 	can I not have been assailing?
can you not have been assailing?
can he not have been assailing?
can we not have been assailing?
can you not have been assailing?
can they not have been assailing?