could dele
Regular verb: dele - deled- deled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could dele
you could dele
she could dele
we could dele
you could dele
they could dele 	I could be deling
you could be deling
she could be deling
we could be deling
you could be deling
they could be deling	I could have deled
you could have deled
she could have deled
we could have deled
you could have deled
they could have deled	I could have been deling
you could have been deling
she could have been deling
we could have been deling
you could have been deling
they could have been deling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't dele
you couldn't dele
she couldn't dele
we couldn't dele
you couldn't dele
they couldn't dele 	I couldn't be deling
you couldn't be deling
she couldn't be deling
we couldn't be deling
you couldn't be deling
they couldn't be deling	I couldn't have deled
you couldn't have deled
she couldn't have deled
we couldn't have deled
you couldn't have deled
they couldn't have deled	I couldn't have been deling
you couldn't have been deling
she couldn't have been deling
we couldn't have been deling
you couldn't have been deling
they couldn't have been deling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I dele?
could you dele?
could she dele?
could we dele?
could you dele?
could they dele? 	could I be deling?
could you be deling?
could she be deling?
could we be deling?
could you be deling?
could they be deling? 	could I have deled?
could you have deled?
could she have deled?
could we have deled?
could you have deled?
could they have deled? 	could I have been deling?
could you have been deling?
could she have been deling?
could we have been deling?
could you have been deling?
could they have been deling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I dele?
couldn't you dele?
couldn't she dele?
couldn't we dele?
couldn't you dele?
couldn't they dele? 	couldn't I be deling?
couldn't you be deling?
couldn't she be deling?
couldn't we be deling?
couldn't you be deling?
couldn't they be deling? 	couldn't I have deled?
couldn't you have deled?
couldn't she have deled?
couldn't we have deled?
couldn't you have deled?
couldn't they have deled? 	couldn't I have been deling?
couldn't you have been deling?
couldn't she have been deling?
couldn't we have been deling?
couldn't you have been deling?
couldn't they have been deling?