can dummy
Regular verb: dummy - dummied- dummied

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can dummy
you can dummy
she can dummy
we can dummy
you can dummy
they can dummy 	I can be dummying
you can be dummying
she can be dummying
we can be dummying
you can be dummying
they can be dummying	I can have dummied
you can have dummied
she can have dummied
we can have dummied
you can have dummied
they can have dummied	I can have been dummying
you can have been dummying
she can have been dummying
we can have been dummying
you can have been dummying
they can have been dummying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot dummy
you cannot dummy
she cannot dummy
we cannot dummy
you cannot dummy
they cannot dummy 	I cannot be dummying
you cannot be dummying
she cannot be dummying
we cannot be dummying
you cannot be dummying
they cannot be dummying	I cannot have dummied
you cannot have dummied
she cannot have dummied
we cannot have dummied
you cannot have dummied
they cannot have dummied	I cannot have been dummying
you cannot have been dummying
she cannot have been dummying
we cannot have been dummying
you cannot have been dummying
they cannot have been dummying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I dummy?
can you dummy?
can she dummy?
can we dummy?
can you dummy?
can they dummy? 	can I be dummying?
can you be dummying?
can she be dummying?
can we be dummying?
can you be dummying?
can they be dummying? 	can I have dummied?
can you have dummied?
can she have dummied?
can we have dummied?
can you have dummied?
can they have dummied? 	can I have been dummying?
can you have been dummying?
can she have been dummying?
can we have been dummying?
can you have been dummying?
can they have been dummying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not dummy?
can you not dummy?
can she not dummy?
can we not dummy?
can you not dummy?
can they not dummy? 	can I not be dummying?
can you not be dummying?
can she not be dummying?
can we not be dummying?
can you not be dummying?
can they not be dummying? 	can I not have dummied?
can you not have dummied?
can she not have dummied?
can we not have dummied?
can you not have dummied?
can they not have dummied? 	can I not have been dummying?
can you not have been dummying?
can she not have been dummying?
can we not have been dummying?
can you not have been dummying?
can they not have been dummying?