can envision
Regular verb: envision - envisioned- envisioned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can envision
you can envision
she can envision
we can envision
you can envision
they can envision 	I can be envisioning
you can be envisioning
she can be envisioning
we can be envisioning
you can be envisioning
they can be envisioning	I can have envisioned
you can have envisioned
she can have envisioned
we can have envisioned
you can have envisioned
they can have envisioned	I can have been envisioning
you can have been envisioning
she can have been envisioning
we can have been envisioning
you can have been envisioning
they can have been envisioning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't envision
you can't envision
she can't envision
we can't envision
you can't envision
they can't envision 	I can't be envisioning
you can't be envisioning
she can't be envisioning
we can't be envisioning
you can't be envisioning
they can't be envisioning	I can't have envisioned
you can't have envisioned
she can't have envisioned
we can't have envisioned
you can't have envisioned
they can't have envisioned	I can't have been envisioning
you can't have been envisioning
she can't have been envisioning
we can't have been envisioning
you can't have been envisioning
they can't have been envisioning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I envision?
can you envision?
can she envision?
can we envision?
can you envision?
can they envision? 	can I be envisioning?
can you be envisioning?
can she be envisioning?
can we be envisioning?
can you be envisioning?
can they be envisioning? 	can I have envisioned?
can you have envisioned?
can she have envisioned?
can we have envisioned?
can you have envisioned?
can they have envisioned? 	can I have been envisioning?
can you have been envisioning?
can she have been envisioning?
can we have been envisioning?
can you have been envisioning?
can they have been envisioning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I envision?
can't you envision?
can't she envision?
can't we envision?
can't you envision?
can't they envision? 	can't I be envisioning?
can't you be envisioning?
can't she be envisioning?
can't we be envisioning?
can't you be envisioning?
can't they be envisioning? 	can't I have envisioned?
can't you have envisioned?
can't she have envisioned?
can't we have envisioned?
can't you have envisioned?
can't they have envisioned? 	can't I have been envisioning?
can't you have been envisioning?
can't she have been envisioning?
can't we have been envisioning?
can't you have been envisioning?
can't they have been envisioning?