could disuse
Regular verb: disuse - disused- disused

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could disuse
you could disuse
he could disuse
we could disuse
you could disuse
they could disuse 	I could be disusing
you could be disusing
he could be disusing
we could be disusing
you could be disusing
they could be disusing	I could have disused
you could have disused
he could have disused
we could have disused
you could have disused
they could have disused	I could have been disusing
you could have been disusing
he could have been disusing
we could have been disusing
you could have been disusing
they could have been disusing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't disuse
you couldn't disuse
he couldn't disuse
we couldn't disuse
you couldn't disuse
they couldn't disuse 	I couldn't be disusing
you couldn't be disusing
he couldn't be disusing
we couldn't be disusing
you couldn't be disusing
they couldn't be disusing	I couldn't have disused
you couldn't have disused
he couldn't have disused
we couldn't have disused
you couldn't have disused
they couldn't have disused	I couldn't have been disusing
you couldn't have been disusing
he couldn't have been disusing
we couldn't have been disusing
you couldn't have been disusing
they couldn't have been disusing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I disuse?
could you disuse?
could he disuse?
could we disuse?
could you disuse?
could they disuse? 	could I be disusing?
could you be disusing?
could he be disusing?
could we be disusing?
could you be disusing?
could they be disusing? 	could I have disused?
could you have disused?
could he have disused?
could we have disused?
could you have disused?
could they have disused? 	could I have been disusing?
could you have been disusing?
could he have been disusing?
could we have been disusing?
could you have been disusing?
could they have been disusing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I disuse?
couldn't you disuse?
couldn't he disuse?
couldn't we disuse?
couldn't you disuse?
couldn't they disuse? 	couldn't I be disusing?
couldn't you be disusing?
couldn't he be disusing?
couldn't we be disusing?
couldn't you be disusing?
couldn't they be disusing? 	couldn't I have disused?
couldn't you have disused?
couldn't he have disused?
couldn't we have disused?
couldn't you have disused?
couldn't they have disused? 	couldn't I have been disusing?
couldn't you have been disusing?
couldn't he have been disusing?
couldn't we have been disusing?
couldn't you have been disusing?
couldn't they have been disusing?