could envisage
Regular verb: envisage - envisaged- envisaged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could envisage
you could envisage
she could envisage
we could envisage
you could envisage
they could envisage 	I could be envisaging
you could be envisaging
she could be envisaging
we could be envisaging
you could be envisaging
they could be envisaging	I could have envisaged
you could have envisaged
she could have envisaged
we could have envisaged
you could have envisaged
they could have envisaged	I could have been envisaging
you could have been envisaging
she could have been envisaging
we could have been envisaging
you could have been envisaging
they could have been envisaging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't envisage
you couldn't envisage
she couldn't envisage
we couldn't envisage
you couldn't envisage
they couldn't envisage 	I couldn't be envisaging
you couldn't be envisaging
she couldn't be envisaging
we couldn't be envisaging
you couldn't be envisaging
they couldn't be envisaging	I couldn't have envisaged
you couldn't have envisaged
she couldn't have envisaged
we couldn't have envisaged
you couldn't have envisaged
they couldn't have envisaged	I couldn't have been envisaging
you couldn't have been envisaging
she couldn't have been envisaging
we couldn't have been envisaging
you couldn't have been envisaging
they couldn't have been envisaging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I envisage?
could you envisage?
could she envisage?
could we envisage?
could you envisage?
could they envisage? 	could I be envisaging?
could you be envisaging?
could she be envisaging?
could we be envisaging?
could you be envisaging?
could they be envisaging? 	could I have envisaged?
could you have envisaged?
could she have envisaged?
could we have envisaged?
could you have envisaged?
could they have envisaged? 	could I have been envisaging?
could you have been envisaging?
could she have been envisaging?
could we have been envisaging?
could you have been envisaging?
could they have been envisaging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I envisage?
couldn't you envisage?
couldn't she envisage?
couldn't we envisage?
couldn't you envisage?
couldn't they envisage? 	couldn't I be envisaging?
couldn't you be envisaging?
couldn't she be envisaging?
couldn't we be envisaging?
couldn't you be envisaging?
couldn't they be envisaging? 	couldn't I have envisaged?
couldn't you have envisaged?
couldn't she have envisaged?
couldn't we have envisaged?
couldn't you have envisaged?
couldn't they have envisaged? 	couldn't I have been envisaging?
couldn't you have been envisaging?
couldn't she have been envisaging?
couldn't we have been envisaging?
couldn't you have been envisaging?
couldn't they have been envisaging?