English verb conjugation
COULD INK

Regular verb: ink - inked - inked

Affirmation

Simple form	V-ing form
I could ink you could ink he could ink we could ink you could ink they could ink	I could be inking you could be inking he could be inking we could be inking you could be inking they could be inking
Perfect	V-ing perfect
I could have inked you could have inked he could have inked we could have inked you could have inked they could have inked	I could have been inking you could have been inking he could have been inking we could have been inking you could have been inking they could have been inking

Negation

Simple form	V-ing form
I couldn't ink you couldn't ink he couldn't ink we couldn't ink you couldn't ink they couldn't ink	I couldn't be inking you couldn't be inking he couldn't be inking we couldn't be inking you couldn't be inking they couldn't be inking
Perfect	V-ing perfect
I couldn't have inked you couldn't have inked he couldn't have inked we couldn't have inked you couldn't have inked they couldn't have inked	I couldn't have been inking you couldn't have been inking he couldn't have been inking we couldn't have been inking you couldn't have been inking they couldn't have been inking

Interrogative form

Simple form	V-ing form
could I ink? could you ink? could he ink? could we ink? could you ink? could they ink?	could I be inking? could you be inking? could he be inking? could we be inking? could you be inking? could they be inking?
Perfect	V-ing perfect
could I have inked? could you have inked? could he have inked? could we have inked? could you have inked? could they have inked?	could I have been inking? could you have been inking? could he have been inking? could we have been inking? could you have been inking? could they have been inking?

Interro-negative form

Simple form	V-ing form
couldn't I ink? couldn't you ink? couldn't he ink? couldn't we ink? couldn't you ink? couldn't they ink?	couldn't I be inking? couldn't you be inking? couldn't he be inking? couldn't we be inking? couldn't you be inking? couldn't they be inking?
Perfect	V-ing perfect
couldn't I have inked? couldn't you have inked? couldn't he have inked? couldn't we have inked? couldn't you have inked? couldn't they have inked?	couldn't I have been inking? couldn't you have been inking? couldn't he have been inking? couldn't we have been inking? couldn't you have been inking? couldn't they have been inking?