must oust
Regular verb: oust - ousted- ousted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must oust
you must oust
he must oust
we must oust
you must oust
they must oust 	I must be ousting
you must be ousting
he must be ousting
we must be ousting
you must be ousting
they must be ousting	I must have ousted
you must have ousted
he must have ousted
we must have ousted
you must have ousted
they must have ousted	I must have been ousting
you must have been ousting
he must have been ousting
we must have been ousting
you must have been ousting
they must have been ousting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't oust
you mustn't oust
he mustn't oust
we mustn't oust
you mustn't oust
they mustn't oust 	I mustn't be ousting
you mustn't be ousting
he mustn't be ousting
we mustn't be ousting
you mustn't be ousting
they mustn't be ousting	I mustn't have ousted
you mustn't have ousted
he mustn't have ousted
we mustn't have ousted
you mustn't have ousted
they mustn't have ousted	I mustn't have been ousting
you mustn't have been ousting
he mustn't have been ousting
we mustn't have been ousting
you mustn't have been ousting
they mustn't have been ousting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I oust?
must you oust?
must he oust?
must we oust?
must you oust?
must they oust? 	must I be ousting?
must you be ousting?
must he be ousting?
must we be ousting?
must you be ousting?
must they be ousting? 	must I have ousted?
must you have ousted?
must he have ousted?
must we have ousted?
must you have ousted?
must they have ousted? 	must I have been ousting?
must you have been ousting?
must he have been ousting?
must we have been ousting?
must you have been ousting?
must they have been ousting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I oust?
mustn't you oust?
mustn't he oust?
mustn't we oust?
mustn't you oust?
mustn't they oust? 	mustn't I be ousting?
mustn't you be ousting?
mustn't he be ousting?
mustn't we be ousting?
mustn't you be ousting?
mustn't they be ousting? 	mustn't I have ousted?
mustn't you have ousted?
mustn't he have ousted?
mustn't we have ousted?
mustn't you have ousted?
mustn't they have ousted? 	mustn't I have been ousting?
mustn't you have been ousting?
mustn't he have been ousting?
mustn't we have been ousting?
mustn't you have been ousting?
mustn't they have been ousting?