must foreknow
Irregular verb: foreknow - foreknew- foreknown

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must foreknow
you must foreknow
he must foreknow
we must foreknow
you must foreknow
they must foreknow 	I must be foreknowing
you must be foreknowing
he must be foreknowing
we must be foreknowing
you must be foreknowing
they must be foreknowing	I must have foreknown
you must have foreknown
he must have foreknown
we must have foreknown
you must have foreknown
they must have foreknown	I must have been foreknowing
you must have been foreknowing
he must have been foreknowing
we must have been foreknowing
you must have been foreknowing
they must have been foreknowing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't foreknow
you mustn't foreknow
he mustn't foreknow
we mustn't foreknow
you mustn't foreknow
they mustn't foreknow 	I mustn't be foreknowing
you mustn't be foreknowing
he mustn't be foreknowing
we mustn't be foreknowing
you mustn't be foreknowing
they mustn't be foreknowing	I mustn't have foreknown
you mustn't have foreknown
he mustn't have foreknown
we mustn't have foreknown
you mustn't have foreknown
they mustn't have foreknown	I mustn't have been foreknowing
you mustn't have been foreknowing
he mustn't have been foreknowing
we mustn't have been foreknowing
you mustn't have been foreknowing
they mustn't have been foreknowing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I foreknow?
must you foreknow?
must he foreknow?
must we foreknow?
must you foreknow?
must they foreknow? 	must I be foreknowing?
must you be foreknowing?
must he be foreknowing?
must we be foreknowing?
must you be foreknowing?
must they be foreknowing? 	must I have foreknown?
must you have foreknown?
must he have foreknown?
must we have foreknown?
must you have foreknown?
must they have foreknown? 	must I have been foreknowing?
must you have been foreknowing?
must he have been foreknowing?
must we have been foreknowing?
must you have been foreknowing?
must they have been foreknowing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I foreknow?
mustn't you foreknow?
mustn't he foreknow?
mustn't we foreknow?
mustn't you foreknow?
mustn't they foreknow? 	mustn't I be foreknowing?
mustn't you be foreknowing?
mustn't he be foreknowing?
mustn't we be foreknowing?
mustn't you be foreknowing?
mustn't they be foreknowing? 	mustn't I have foreknown?
mustn't you have foreknown?
mustn't he have foreknown?
mustn't we have foreknown?
mustn't you have foreknown?
mustn't they have foreknown? 	mustn't I have been foreknowing?
mustn't you have been foreknowing?
mustn't he have been foreknowing?
mustn't we have been foreknowing?
mustn't you have been foreknowing?
mustn't they have been foreknowing?