English verb conjugation
COULD MONOGRAPH

Regular verb: monograph - monographed - monographed

Affirmation

Simple form	V-ing form
I could monograph you could monograph he could monograph we could monograph you could monograph they could monograph	I could be monographing you could be monographing he could be monographing we could be monographing you could be monographing they could be monographing
Perfect	V-ing perfect
I could have monographed you could have monographed he could have monographed we could have monographed you could have monographed they could have monographed	I could have been monographing you could have been monographing he could have been monographing we could have been monographing you could have been monographing they could have been monographing

Negation

Simple form	V-ing form
I couldn't monograph you couldn't monograph he couldn't monograph we couldn't monograph you couldn't monograph they couldn't monograph	I couldn't be monographing you couldn't be monographing he couldn't be monographing we couldn't be monographing you couldn't be monographing they couldn't be monographing
Perfect	V-ing perfect
I couldn't have monographed you couldn't have monographed he couldn't have monographed we couldn't have monographed you couldn't have monographed they couldn't have monographed	I couldn't have been monographing you couldn't have been monographing he couldn't have been monographing we couldn't have been monographing you couldn't have been monographing they couldn't have been monographing

Interrogative form

Simple form	V-ing form
could I monograph? could you monograph? could he monograph? could we monograph? could you monograph? could they monograph?	could I be monographing? could you be monographing? could he be monographing? could we be monographing? could you be monographing? could they be monographing?
Perfect	V-ing perfect
could I have monographed? could you have monographed? could he have monographed? could we have monographed? could you have monographed? could they have monographed?	could I have been monographing? could you have been monographing? could he have been monographing? could we have been monographing? could you have been monographing? could they have been monographing?

Interro-negative form

Simple form	V-ing form
couldn't I monograph? couldn't you monograph? couldn't he monograph? couldn't we monograph? couldn't you monograph? couldn't they monograph?	couldn't I be monographing? couldn't you be monographing? couldn't he be monographing? couldn't we be monographing? couldn't you be monographing? couldn't they be monographing?
Perfect	V-ing perfect
couldn't I have monographed? couldn't you have monographed? couldn't he have monographed? couldn't we have monographed? couldn't you have monographed? couldn't they have monographed?	couldn't I have been monographing? couldn't you have been monographing? couldn't he have been monographing? couldn't we have been monographing? couldn't you have been monographing? couldn't they have been monographing?