must interpermeate
Regular verb: interpermeate - interpermeated- interpermeated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must interpermeate
you must interpermeate
she must interpermeate
we must interpermeate
you must interpermeate
they must interpermeate 	I must be interpermeating
you must be interpermeating
she must be interpermeating
we must be interpermeating
you must be interpermeating
they must be interpermeating	I must have interpermeated
you must have interpermeated
she must have interpermeated
we must have interpermeated
you must have interpermeated
they must have interpermeated	I must have been interpermeating
you must have been interpermeating
she must have been interpermeating
we must have been interpermeating
you must have been interpermeating
they must have been interpermeating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't interpermeate
you mustn't interpermeate
she mustn't interpermeate
we mustn't interpermeate
you mustn't interpermeate
they mustn't interpermeate 	I mustn't be interpermeating
you mustn't be interpermeating
she mustn't be interpermeating
we mustn't be interpermeating
you mustn't be interpermeating
they mustn't be interpermeating	I mustn't have interpermeated
you mustn't have interpermeated
she mustn't have interpermeated
we mustn't have interpermeated
you mustn't have interpermeated
they mustn't have interpermeated	I mustn't have been interpermeating
you mustn't have been interpermeating
she mustn't have been interpermeating
we mustn't have been interpermeating
you mustn't have been interpermeating
they mustn't have been interpermeating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I interpermeate?
must you interpermeate?
must she interpermeate?
must we interpermeate?
must you interpermeate?
must they interpermeate? 	must I be interpermeating?
must you be interpermeating?
must she be interpermeating?
must we be interpermeating?
must you be interpermeating?
must they be interpermeating? 	must I have interpermeated?
must you have interpermeated?
must she have interpermeated?
must we have interpermeated?
must you have interpermeated?
must they have interpermeated? 	must I have been interpermeating?
must you have been interpermeating?
must she have been interpermeating?
must we have been interpermeating?
must you have been interpermeating?
must they have been interpermeating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I interpermeate?
mustn't you interpermeate?
mustn't she interpermeate?
mustn't we interpermeate?
mustn't you interpermeate?
mustn't they interpermeate? 	mustn't I be interpermeating?
mustn't you be interpermeating?
mustn't she be interpermeating?
mustn't we be interpermeating?
mustn't you be interpermeating?
mustn't they be interpermeating? 	mustn't I have interpermeated?
mustn't you have interpermeated?
mustn't she have interpermeated?
mustn't we have interpermeated?
mustn't you have interpermeated?
mustn't they have interpermeated? 	mustn't I have been interpermeating?
mustn't you have been interpermeating?
mustn't she have been interpermeating?
mustn't we have been interpermeating?
mustn't you have been interpermeating?
mustn't they have been interpermeating?