could envisage
Regular verb: envisage - envisaged- envisaged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could envisage
you could envisage
he could envisage
we could envisage
you could envisage
they could envisage 	I could be envisaging
you could be envisaging
he could be envisaging
we could be envisaging
you could be envisaging
they could be envisaging	I could have envisaged
you could have envisaged
he 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
he 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 could not envisage
you could not envisage
he could not envisage
we could not envisage
you could not envisage
they could not envisage 	I could not be envisaging
you could not be envisaging
he could not be envisaging
we could not be envisaging
you could not be envisaging
they could not be envisaging	I could not have envisaged
you could not have envisaged
he could not have envisaged
we could not have envisaged
you could not have envisaged
they could not have envisaged	I could not have been envisaging
you could not have been envisaging
he could not have been envisaging
we could not have been envisaging
you could not have been envisaging
they could not have been envisaging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I envisage?
could you envisage?
could he envisage?
could we envisage?
could you envisage?
could they envisage? 	could I be envisaging?
could you be envisaging?
could he be envisaging?
could we be envisaging?
could you be envisaging?
could they be envisaging? 	could I have envisaged?
could you have envisaged?
could he 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 he 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 	
could I not envisage?
could you not envisage?
could he not envisage?
could we not envisage?
could you not envisage?
could they not envisage? 	could I not be envisaging?
could you not be envisaging?
could he not be envisaging?
could we not be envisaging?
could you not be envisaging?
could they not be envisaging? 	could I not have envisaged?
could you not have envisaged?
could he not have envisaged?
could we not have envisaged?
could you not have envisaged?
could they not have envisaged? 	could I not have been envisaging?
could you not have been envisaging?
could he not have been envisaging?
could we not have been envisaging?
could you not have been envisaging?
could they not have been envisaging?