could monograph
Regular verb: monograph - monographed- monographed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?