ought to assume
Regular verb: assume - assumed- assumed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to assume
you ought to assume
she ought to assume
we ought to assume
you ought to assume
they ought to assume 	I ought to be assuming
you ought to be assuming
she ought to be assuming
we ought to be assuming
you ought to be assuming
they ought to be assuming	I ought to have assumed
you ought to have assumed
she ought to have assumed
we ought to have assumed
you ought to have assumed
they ought to have assumed	I ought to have been assuming
you ought to have been assuming
she ought to have been assuming
we ought to have been assuming
you ought to have been assuming
they ought to have been assuming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to assume
you oughtn't to assume
she oughtn't to assume
we oughtn't to assume
you oughtn't to assume
they oughtn't to assume 	I oughtn't to be assuming
you oughtn't to be assuming
she oughtn't to be assuming
we oughtn't to be assuming
you oughtn't to be assuming
they oughtn't to be assuming	I oughtn't to have assumed
you oughtn't to have assumed
she oughtn't to have assumed
we oughtn't to have assumed
you oughtn't to have assumed
they oughtn't to have assumed	I oughtn't to have been assuming
you oughtn't to have been assuming
she oughtn't to have been assuming
we oughtn't to have been assuming
you oughtn't to have been assuming
they oughtn't to have been assuming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I assume?
ought to you assume?
ought to she assume?
ought to we assume?
ought to you assume?
ought to they assume? 	ought to I be assuming?
ought to you be assuming?
ought to she be assuming?
ought to we be assuming?
ought to you be assuming?
ought to they be assuming? 	ought to I have assumed?
ought to you have assumed?
ought to she have assumed?
ought to we have assumed?
ought to you have assumed?
ought to they have assumed? 	ought to I have been assuming?
ought to you have been assuming?
ought to she have been assuming?
ought to we have been assuming?
ought to you have been assuming?
ought to they have been assuming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to assume?
oughtn't you to assume?
oughtn't she to assume?
oughtn't we to assume?
oughtn't you to assume?
oughtn't they to assume? 	oughtn't I to be assuming?
oughtn't you to be assuming?
oughtn't she to be assuming?
oughtn't we to be assuming?
oughtn't you to be assuming?
oughtn't they to be assuming? 	oughtn't I to have assumed?
oughtn't you to have assumed?
oughtn't she to have assumed?
oughtn't we to have assumed?
oughtn't you to have assumed?
oughtn't they to have assumed? 	oughtn't I to have been assuming?
oughtn't you to have been assuming?
oughtn't she to have been assuming?
oughtn't we to have been assuming?
oughtn't you to have been assuming?
oughtn't they to have been assuming?