could dummy
Regular verb: dummy - dummied- dummied

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

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

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

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