could denude
Regular verb: denude - denuded- denuded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could denude
you could denude
he could denude
we could denude
you could denude
they could denude 	I could be denuding
you could be denuding
he could be denuding
we could be denuding
you could be denuding
they could be denuding	I could have denuded
you could have denuded
he could have denuded
we could have denuded
you could have denuded
they could have denuded	I could have been denuding
you could have been denuding
he could have been denuding
we could have been denuding
you could have been denuding
they could have been denuding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't denude
you couldn't denude
he couldn't denude
we couldn't denude
you couldn't denude
they couldn't denude 	I couldn't be denuding
you couldn't be denuding
he couldn't be denuding
we couldn't be denuding
you couldn't be denuding
they couldn't be denuding	I couldn't have denuded
you couldn't have denuded
he couldn't have denuded
we couldn't have denuded
you couldn't have denuded
they couldn't have denuded	I couldn't have been denuding
you couldn't have been denuding
he couldn't have been denuding
we couldn't have been denuding
you couldn't have been denuding
they couldn't have been denuding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I denude?
could you denude?
could he denude?
could we denude?
could you denude?
could they denude? 	could I be denuding?
could you be denuding?
could he be denuding?
could we be denuding?
could you be denuding?
could they be denuding? 	could I have denuded?
could you have denuded?
could he have denuded?
could we have denuded?
could you have denuded?
could they have denuded? 	could I have been denuding?
could you have been denuding?
could he have been denuding?
could we have been denuding?
could you have been denuding?
could they have been denuding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I denude?
couldn't you denude?
couldn't he denude?
couldn't we denude?
couldn't you denude?
couldn't they denude? 	couldn't I be denuding?
couldn't you be denuding?
couldn't he be denuding?
couldn't we be denuding?
couldn't you be denuding?
couldn't they be denuding? 	couldn't I have denuded?
couldn't you have denuded?
couldn't he have denuded?
couldn't we have denuded?
couldn't you have denuded?
couldn't they have denuded? 	couldn't I have been denuding?
couldn't you have been denuding?
couldn't he have been denuding?
couldn't we have been denuding?
couldn't you have been denuding?
couldn't they have been denuding?