must faint
Regular verb: faint - fainted- fainted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must faint
you must faint
she must faint
we must faint
you must faint
they must faint 	I must be fainting
you must be fainting
she must be fainting
we must be fainting
you must be fainting
they must be fainting	I must have fainted
you must have fainted
she must have fainted
we must have fainted
you must have fainted
they must have fainted	I must have been fainting
you must have been fainting
she must have been fainting
we must have been fainting
you must have been fainting
they must have been fainting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't faint
you mustn't faint
she mustn't faint
we mustn't faint
you mustn't faint
they mustn't faint 	I mustn't be fainting
you mustn't be fainting
she mustn't be fainting
we mustn't be fainting
you mustn't be fainting
they mustn't be fainting	I mustn't have fainted
you mustn't have fainted
she mustn't have fainted
we mustn't have fainted
you mustn't have fainted
they mustn't have fainted	I mustn't have been fainting
you mustn't have been fainting
she mustn't have been fainting
we mustn't have been fainting
you mustn't have been fainting
they mustn't have been fainting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I faint?
must you faint?
must she faint?
must we faint?
must you faint?
must they faint? 	must I be fainting?
must you be fainting?
must she be fainting?
must we be fainting?
must you be fainting?
must they be fainting? 	must I have fainted?
must you have fainted?
must she have fainted?
must we have fainted?
must you have fainted?
must they have fainted? 	must I have been fainting?
must you have been fainting?
must she have been fainting?
must we have been fainting?
must you have been fainting?
must they have been fainting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I faint?
mustn't you faint?
mustn't she faint?
mustn't we faint?
mustn't you faint?
mustn't they faint? 	mustn't I be fainting?
mustn't you be fainting?
mustn't she be fainting?
mustn't we be fainting?
mustn't you be fainting?
mustn't they be fainting? 	mustn't I have fainted?
mustn't you have fainted?
mustn't she have fainted?
mustn't we have fainted?
mustn't you have fainted?
mustn't they have fainted? 	mustn't I have been fainting?
mustn't you have been fainting?
mustn't she have been fainting?
mustn't we have been fainting?
mustn't you have been fainting?
mustn't they have been fainting?