can bulwark
Regular verb: bulwark - bulwarked- bulwarked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can bulwark
you can bulwark
he can bulwark
we can bulwark
you can bulwark
they can bulwark 	I can be bulwarking
you can be bulwarking
he can be bulwarking
we can be bulwarking
you can be bulwarking
they can be bulwarking	I can have bulwarked
you can have bulwarked
he can have bulwarked
we can have bulwarked
you can have bulwarked
they can have bulwarked	I can have been bulwarking
you can have been bulwarking
he can have been bulwarking
we can have been bulwarking
you can have been bulwarking
they can have been bulwarking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot bulwark
you cannot bulwark
he cannot bulwark
we cannot bulwark
you cannot bulwark
they cannot bulwark 	I cannot be bulwarking
you cannot be bulwarking
he cannot be bulwarking
we cannot be bulwarking
you cannot be bulwarking
they cannot be bulwarking	I cannot have bulwarked
you cannot have bulwarked
he cannot have bulwarked
we cannot have bulwarked
you cannot have bulwarked
they cannot have bulwarked	I cannot have been bulwarking
you cannot have been bulwarking
he cannot have been bulwarking
we cannot have been bulwarking
you cannot have been bulwarking
they cannot have been bulwarking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I bulwark?
can you bulwark?
can he bulwark?
can we bulwark?
can you bulwark?
can they bulwark? 	can I be bulwarking?
can you be bulwarking?
can he be bulwarking?
can we be bulwarking?
can you be bulwarking?
can they be bulwarking? 	can I have bulwarked?
can you have bulwarked?
can he have bulwarked?
can we have bulwarked?
can you have bulwarked?
can they have bulwarked? 	can I have been bulwarking?
can you have been bulwarking?
can he have been bulwarking?
can we have been bulwarking?
can you have been bulwarking?
can they have been bulwarking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not bulwark?
can you not bulwark?
can he not bulwark?
can we not bulwark?
can you not bulwark?
can they not bulwark? 	can I not be bulwarking?
can you not be bulwarking?
can he not be bulwarking?
can we not be bulwarking?
can you not be bulwarking?
can they not be bulwarking? 	can I not have bulwarked?
can you not have bulwarked?
can he not have bulwarked?
can we not have bulwarked?
can you not have bulwarked?
can they not have bulwarked? 	can I not have been bulwarking?
can you not have been bulwarking?
can he not have been bulwarking?
can we not have been bulwarking?
can you not have been bulwarking?
can they not have been bulwarking?