must foment
Regular verb: foment - fomented- fomented

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must foment
you must foment
he must foment
we must foment
you must foment
they must foment 	I must be fomenting
you must be fomenting
he must be fomenting
we must be fomenting
you must be fomenting
they must be fomenting	I must have fomented
you must have fomented
he must have fomented
we must have fomented
you must have fomented
they must have fomented	I must have been fomenting
you must have been fomenting
he must have been fomenting
we must have been fomenting
you must have been fomenting
they must have been fomenting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't foment
you mustn't foment
he mustn't foment
we mustn't foment
you mustn't foment
they mustn't foment 	I mustn't be fomenting
you mustn't be fomenting
he mustn't be fomenting
we mustn't be fomenting
you mustn't be fomenting
they mustn't be fomenting	I mustn't have fomented
you mustn't have fomented
he mustn't have fomented
we mustn't have fomented
you mustn't have fomented
they mustn't have fomented	I mustn't have been fomenting
you mustn't have been fomenting
he mustn't have been fomenting
we mustn't have been fomenting
you mustn't have been fomenting
they mustn't have been fomenting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I foment?
must you foment?
must he foment?
must we foment?
must you foment?
must they foment? 	must I be fomenting?
must you be fomenting?
must he be fomenting?
must we be fomenting?
must you be fomenting?
must they be fomenting? 	must I have fomented?
must you have fomented?
must he have fomented?
must we have fomented?
must you have fomented?
must they have fomented? 	must I have been fomenting?
must you have been fomenting?
must he have been fomenting?
must we have been fomenting?
must you have been fomenting?
must they have been fomenting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I foment?
mustn't you foment?
mustn't he foment?
mustn't we foment?
mustn't you foment?
mustn't they foment? 	mustn't I be fomenting?
mustn't you be fomenting?
mustn't he be fomenting?
mustn't we be fomenting?
mustn't you be fomenting?
mustn't they be fomenting? 	mustn't I have fomented?
mustn't you have fomented?
mustn't he have fomented?
mustn't we have fomented?
mustn't you have fomented?
mustn't they have fomented? 	mustn't I have been fomenting?
mustn't you have been fomenting?
mustn't he have been fomenting?
mustn't we have been fomenting?
mustn't you have been fomenting?
mustn't they have been fomenting?