must compute
Regular verb: compute - computed- computed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must compute
you must compute
he must compute
we must compute
you must compute
they must compute 	I must be computing
you must be computing
he must be computing
we must be computing
you must be computing
they must be computing	I must have computed
you must have computed
he must have computed
we must have computed
you must have computed
they must have computed	I must have been computing
you must have been computing
he must have been computing
we must have been computing
you must have been computing
they must have been computing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't compute
you mustn't compute
he mustn't compute
we mustn't compute
you mustn't compute
they mustn't compute 	I mustn't be computing
you mustn't be computing
he mustn't be computing
we mustn't be computing
you mustn't be computing
they mustn't be computing	I mustn't have computed
you mustn't have computed
he mustn't have computed
we mustn't have computed
you mustn't have computed
they mustn't have computed	I mustn't have been computing
you mustn't have been computing
he mustn't have been computing
we mustn't have been computing
you mustn't have been computing
they mustn't have been computing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I compute?
must you compute?
must he compute?
must we compute?
must you compute?
must they compute? 	must I be computing?
must you be computing?
must he be computing?
must we be computing?
must you be computing?
must they be computing? 	must I have computed?
must you have computed?
must he have computed?
must we have computed?
must you have computed?
must they have computed? 	must I have been computing?
must you have been computing?
must he have been computing?
must we have been computing?
must you have been computing?
must they have been computing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I compute?
mustn't you compute?
mustn't he compute?
mustn't we compute?
mustn't you compute?
mustn't they compute? 	mustn't I be computing?
mustn't you be computing?
mustn't he be computing?
mustn't we be computing?
mustn't you be computing?
mustn't they be computing? 	mustn't I have computed?
mustn't you have computed?
mustn't he have computed?
mustn't we have computed?
mustn't you have computed?
mustn't they have computed? 	mustn't I have been computing?
mustn't you have been computing?
mustn't he have been computing?
mustn't we have been computing?
mustn't you have been computing?
mustn't they have been computing?