could debark
Regular verb: debark - debarked- debarked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could debark
you could debark
she could debark
we could debark
you could debark
they could debark 	I could be debarking
you could be debarking
she could be debarking
we could be debarking
you could be debarking
they could be debarking	I could have debarked
you could have debarked
she could have debarked
we could have debarked
you could have debarked
they could have debarked	I could have been debarking
you could have been debarking
she could have been debarking
we could have been debarking
you could have been debarking
they could have been debarking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't debark
you couldn't debark
she couldn't debark
we couldn't debark
you couldn't debark
they couldn't debark 	I couldn't be debarking
you couldn't be debarking
she couldn't be debarking
we couldn't be debarking
you couldn't be debarking
they couldn't be debarking	I couldn't have debarked
you couldn't have debarked
she couldn't have debarked
we couldn't have debarked
you couldn't have debarked
they couldn't have debarked	I couldn't have been debarking
you couldn't have been debarking
she couldn't have been debarking
we couldn't have been debarking
you couldn't have been debarking
they couldn't have been debarking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I debark?
could you debark?
could she debark?
could we debark?
could you debark?
could they debark? 	could I be debarking?
could you be debarking?
could she be debarking?
could we be debarking?
could you be debarking?
could they be debarking? 	could I have debarked?
could you have debarked?
could she have debarked?
could we have debarked?
could you have debarked?
could they have debarked? 	could I have been debarking?
could you have been debarking?
could she have been debarking?
could we have been debarking?
could you have been debarking?
could they have been debarking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I debark?
couldn't you debark?
couldn't she debark?
couldn't we debark?
couldn't you debark?
couldn't they debark? 	couldn't I be debarking?
couldn't you be debarking?
couldn't she be debarking?
couldn't we be debarking?
couldn't you be debarking?
couldn't they be debarking? 	couldn't I have debarked?
couldn't you have debarked?
couldn't she have debarked?
couldn't we have debarked?
couldn't you have debarked?
couldn't they have debarked? 	couldn't I have been debarking?
couldn't you have been debarking?
couldn't she have been debarking?
couldn't we have been debarking?
couldn't you have been debarking?
couldn't they have been debarking?