must assume
Regular verb: assume - assumed- assumed

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

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

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

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