must souse
Regular verb: souse - soused- soused

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must souse
you must souse
he must souse
we must souse
you must souse
they must souse 	I must be sousing
you must be sousing
he must be sousing
we must be sousing
you must be sousing
they must be sousing	I must have soused
you must have soused
he must have soused
we must have soused
you must have soused
they must have soused	I must have been sousing
you must have been sousing
he must have been sousing
we must have been sousing
you must have been sousing
they must have been sousing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't souse
you mustn't souse
he mustn't souse
we mustn't souse
you mustn't souse
they mustn't souse 	I mustn't be sousing
you mustn't be sousing
he mustn't be sousing
we mustn't be sousing
you mustn't be sousing
they mustn't be sousing	I mustn't have soused
you mustn't have soused
he mustn't have soused
we mustn't have soused
you mustn't have soused
they mustn't have soused	I mustn't have been sousing
you mustn't have been sousing
he mustn't have been sousing
we mustn't have been sousing
you mustn't have been sousing
they mustn't have been sousing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I souse?
must you souse?
must he souse?
must we souse?
must you souse?
must they souse? 	must I be sousing?
must you be sousing?
must he be sousing?
must we be sousing?
must you be sousing?
must they be sousing? 	must I have soused?
must you have soused?
must he have soused?
must we have soused?
must you have soused?
must they have soused? 	must I have been sousing?
must you have been sousing?
must he have been sousing?
must we have been sousing?
must you have been sousing?
must they have been sousing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I souse?
mustn't you souse?
mustn't he souse?
mustn't we souse?
mustn't you souse?
mustn't they souse? 	mustn't I be sousing?
mustn't you be sousing?
mustn't he be sousing?
mustn't we be sousing?
mustn't you be sousing?
mustn't they be sousing? 	mustn't I have soused?
mustn't you have soused?
mustn't he have soused?
mustn't we have soused?
mustn't you have soused?
mustn't they have soused? 	mustn't I have been sousing?
mustn't you have been sousing?
mustn't he have been sousing?
mustn't we have been sousing?
mustn't you have been sousing?
mustn't they have been sousing?