ought to envisage
Regular verb: envisage - envisaged- envisaged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to envisage
you ought to envisage
he ought to envisage
we ought to envisage
you ought to envisage
they ought to envisage 	I ought to be envisaging
you ought to be envisaging
he ought to be envisaging
we ought to be envisaging
you ought to be envisaging
they ought to be envisaging	I ought to have envisaged
you ought to have envisaged
he ought to have envisaged
we ought to have envisaged
you ought to have envisaged
they ought to have envisaged	I ought to have been envisaging
you ought to have been envisaging
he ought to have been envisaging
we ought to have been envisaging
you ought to have been envisaging
they ought to have been envisaging	

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

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I envisage?
ought to you envisage?
ought to he envisage?
ought to we envisage?
ought to you envisage?
ought to they envisage? 	ought to I be envisaging?
ought to you be envisaging?
ought to he be envisaging?
ought to we be envisaging?
ought to you be envisaging?
ought to they be envisaging? 	ought to I have envisaged?
ought to you have envisaged?
ought to he have envisaged?
ought to we have envisaged?
ought to you have envisaged?
ought to they have envisaged? 	ought to I have been envisaging?
ought to you have been envisaging?
ought to he have been envisaging?
ought to we have been envisaging?
ought to you have been envisaging?
ought to they have been envisaging? 	

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