English verb conjugation
COULD DEBARK

Regular verb: debark - debarked - debarked

Affirmation

Simple form	V-ing form
I could debark you could debark he could debark we could debark you could debark they could debark	I could be debarking you could be debarking he could be debarking we could be debarking you could be debarking they could be debarking
Perfect	V-ing perfect
I could have debarked you could have debarked he 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 he 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
I could not debark you could not debark he could not debark we could not debark you could not debark they could not debark	I could not be debarking you could not be debarking he could not be debarking we could not be debarking you could not be debarking they could not be debarking
Perfect	V-ing perfect
I could not have debarked you could not have debarked he could not have debarked we could not have debarked you could not have debarked they could not have debarked	I could not have been debarking you could not have been debarking he could not have been debarking we could not have been debarking you could not have been debarking they could not have been debarking

Interrogative form

Simple form	V-ing form
could I debark? could you debark? could he debark? could we debark? could you debark? could they debark?	could I be debarking? could you be debarking? could he be debarking? could we be debarking? could you be debarking? could they be debarking?
Perfect	V-ing perfect
could I have debarked? could you have debarked? could he 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 he 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
could I not debark? could you not debark? could he not debark? could we not debark? could you not debark? could they not debark?	could I not be debarking? could you not be debarking? could he not be debarking? could we not be debarking? could you not be debarking? could they not be debarking?
Perfect	V-ing perfect
could I not have debarked? could you not have debarked? could he not have debarked? could we not have debarked? could you not have debarked? could they not have debarked?	could I not have been debarking? could you not have been debarking? could he not have been debarking? could we not have been debarking? could you not have been debarking? could they not have been debarking?