Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could envisage envisage you could envisage envisage she could envisage envisage we could envisage envisage you could envisage envisage they could envisage envisage
V-ing form
I could be envisage envisaging you could be envisage envisaging she could be envisage envisaging we could be envisage envisaging you could be envisage envisaging they could be envisage envisaging
Perfect
I could have envisage envisaged you could have envisage envisaged she could have envisage envisaged we could have envisage envisaged you could have envisage envisaged they could have envisage envisaged
V-ing perfect
I could have been envisage envisaging you could have been envisage envisaging she could have been envisage envisaging we could have been envisage envisaging you could have been envisage envisaging they could have been envisage envisaging
Negation
Simple form
I couldn't envisage envisage you couldn't envisage envisage she couldn't envisage envisage we couldn't envisage envisage you couldn't envisage envisage they couldn't envisage envisage
V-ing form
I couldn't be envisage envisaging you couldn't be envisage envisaging she couldn't be envisage envisaging we couldn't be envisage envisaging you couldn't be envisage envisaging they couldn't be envisage envisaging
Perfect
I couldn't have envisage envisaged you couldn't have envisage envisaged she couldn't have envisage envisaged we couldn't have envisage envisaged you couldn't have envisage envisaged they couldn't have envisage envisaged
V-ing perfect
I couldn't have been envisage envisaging you couldn't have been envisage envisaging she couldn't have been envisage envisaging we couldn't have been envisage envisaging you couldn't have been envisage envisaging they couldn't have been envisage envisaging
Interrogative form
Simple form
could I envisage envisage? could you envisage envisage? could she envisage envisage? could we envisage envisage? could you envisage envisage? could they envisage envisage?
V-ing form
could I be envisage envisaging? could you be envisage envisaging? could she be envisage envisaging? could we be envisage envisaging? could you be envisage envisaging? could they be envisage envisaging?
Perfect
could I have envisage envisaged? could you have envisage envisaged? could she have envisage envisaged? could we have envisage envisaged? could you have envisage envisaged? could they have envisage envisaged?
V-ing perfect
could I have been envisage envisaging? could you have been envisage envisaging? could she have been envisage envisaging? could we have been envisage envisaging? could you have been envisage envisaging? could they have been envisage envisaging?
Interro-negative form
Simple form
couldn't I envisage envisage? couldn't you envisage envisage? couldn't she envisage envisage? couldn't we envisage envisage? couldn't you envisage envisage? couldn't they envisage envisage?
V-ing form
couldn't I be envisage envisaging? couldn't you be envisage envisaging? couldn't she be envisage envisaging? couldn't we be envisage envisaging? couldn't you be envisage envisaging? couldn't they be envisage envisaging?
Perfect
couldn't I have envisage envisaged? couldn't you have envisage envisaged? couldn't she have envisage envisaged? couldn't we have envisage envisaged? couldn't you have envisage envisaged? couldn't they have envisage envisaged?
V-ing perfect
couldn't I have been envisage envisaging? couldn't you have been envisage envisaging? couldn't she have been envisage envisaging? couldn't we have been envisage envisaging? couldn't you have been envisage envisaging? couldn't they have been envisage envisaging?