can stonewall
Regular verb: stonewall - stonewalled- stonewalled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can stonewall
you can stonewall
he can stonewall
we can stonewall
you can stonewall
they can stonewall 	I can be stonewalling
you can be stonewalling
he can be stonewalling
we can be stonewalling
you can be stonewalling
they can be stonewalling	I can have stonewalled
you can have stonewalled
he can have stonewalled
we can have stonewalled
you can have stonewalled
they can have stonewalled	I can have been stonewalling
you can have been stonewalling
he can have been stonewalling
we can have been stonewalling
you can have been stonewalling
they can have been stonewalling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot stonewall
you cannot stonewall
he cannot stonewall
we cannot stonewall
you cannot stonewall
they cannot stonewall 	I cannot be stonewalling
you cannot be stonewalling
he cannot be stonewalling
we cannot be stonewalling
you cannot be stonewalling
they cannot be stonewalling	I cannot have stonewalled
you cannot have stonewalled
he cannot have stonewalled
we cannot have stonewalled
you cannot have stonewalled
they cannot have stonewalled	I cannot have been stonewalling
you cannot have been stonewalling
he cannot have been stonewalling
we cannot have been stonewalling
you cannot have been stonewalling
they cannot have been stonewalling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I stonewall?
can you stonewall?
can he stonewall?
can we stonewall?
can you stonewall?
can they stonewall? 	can I be stonewalling?
can you be stonewalling?
can he be stonewalling?
can we be stonewalling?
can you be stonewalling?
can they be stonewalling? 	can I have stonewalled?
can you have stonewalled?
can he have stonewalled?
can we have stonewalled?
can you have stonewalled?
can they have stonewalled? 	can I have been stonewalling?
can you have been stonewalling?
can he have been stonewalling?
can we have been stonewalling?
can you have been stonewalling?
can they have been stonewalling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not stonewall?
can you not stonewall?
can he not stonewall?
can we not stonewall?
can you not stonewall?
can they not stonewall? 	can I not be stonewalling?
can you not be stonewalling?
can he not be stonewalling?
can we not be stonewalling?
can you not be stonewalling?
can they not be stonewalling? 	can I not have stonewalled?
can you not have stonewalled?
can he not have stonewalled?
can we not have stonewalled?
can you not have stonewalled?
can they not have stonewalled? 	can I not have been stonewalling?
can you not have been stonewalling?
can he not have been stonewalling?
can we not have been stonewalling?
can you not have been stonewalling?
can they not have been stonewalling?