could magnify
Regular verb: magnify - magnified- magnified

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could magnify
you could magnify
she could magnify
we could magnify
you could magnify
they could magnify 	I could be magnifying
you could be magnifying
she could be magnifying
we could be magnifying
you could be magnifying
they could be magnifying	I could have magnified
you could have magnified
she could have magnified
we could have magnified
you could have magnified
they could have magnified	I could have been magnifying
you could have been magnifying
she could have been magnifying
we could have been magnifying
you could have been magnifying
they could have been magnifying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't magnify
you couldn't magnify
she couldn't magnify
we couldn't magnify
you couldn't magnify
they couldn't magnify 	I couldn't be magnifying
you couldn't be magnifying
she couldn't be magnifying
we couldn't be magnifying
you couldn't be magnifying
they couldn't be magnifying	I couldn't have magnified
you couldn't have magnified
she couldn't have magnified
we couldn't have magnified
you couldn't have magnified
they couldn't have magnified	I couldn't have been magnifying
you couldn't have been magnifying
she couldn't have been magnifying
we couldn't have been magnifying
you couldn't have been magnifying
they couldn't have been magnifying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I magnify?
could you magnify?
could she magnify?
could we magnify?
could you magnify?
could they magnify? 	could I be magnifying?
could you be magnifying?
could she be magnifying?
could we be magnifying?
could you be magnifying?
could they be magnifying? 	could I have magnified?
could you have magnified?
could she have magnified?
could we have magnified?
could you have magnified?
could they have magnified? 	could I have been magnifying?
could you have been magnifying?
could she have been magnifying?
could we have been magnifying?
could you have been magnifying?
could they have been magnifying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I magnify?
couldn't you magnify?
couldn't she magnify?
couldn't we magnify?
couldn't you magnify?
couldn't they magnify? 	couldn't I be magnifying?
couldn't you be magnifying?
couldn't she be magnifying?
couldn't we be magnifying?
couldn't you be magnifying?
couldn't they be magnifying? 	couldn't I have magnified?
couldn't you have magnified?
couldn't she have magnified?
couldn't we have magnified?
couldn't you have magnified?
couldn't they have magnified? 	couldn't I have been magnifying?
couldn't you have been magnifying?
couldn't she have been magnifying?
couldn't we have been magnifying?
couldn't you have been magnifying?
couldn't they have been magnifying?