must flute
Regular verb: flute - fluted- fluted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must flute
you must flute
she must flute
we must flute
you must flute
they must flute 	I must be fluting
you must be fluting
she must be fluting
we must be fluting
you must be fluting
they must be fluting	I must have fluted
you must have fluted
she must have fluted
we must have fluted
you must have fluted
they must have fluted	I must have been fluting
you must have been fluting
she must have been fluting
we must have been fluting
you must have been fluting
they must have been fluting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't flute
you mustn't flute
she mustn't flute
we mustn't flute
you mustn't flute
they mustn't flute 	I mustn't be fluting
you mustn't be fluting
she mustn't be fluting
we mustn't be fluting
you mustn't be fluting
they mustn't be fluting	I mustn't have fluted
you mustn't have fluted
she mustn't have fluted
we mustn't have fluted
you mustn't have fluted
they mustn't have fluted	I mustn't have been fluting
you mustn't have been fluting
she mustn't have been fluting
we mustn't have been fluting
you mustn't have been fluting
they mustn't have been fluting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I flute?
must you flute?
must she flute?
must we flute?
must you flute?
must they flute? 	must I be fluting?
must you be fluting?
must she be fluting?
must we be fluting?
must you be fluting?
must they be fluting? 	must I have fluted?
must you have fluted?
must she have fluted?
must we have fluted?
must you have fluted?
must they have fluted? 	must I have been fluting?
must you have been fluting?
must she have been fluting?
must we have been fluting?
must you have been fluting?
must they have been fluting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I flute?
mustn't you flute?
mustn't she flute?
mustn't we flute?
mustn't you flute?
mustn't they flute? 	mustn't I be fluting?
mustn't you be fluting?
mustn't she be fluting?
mustn't we be fluting?
mustn't you be fluting?
mustn't they be fluting? 	mustn't I have fluted?
mustn't you have fluted?
mustn't she have fluted?
mustn't we have fluted?
mustn't you have fluted?
mustn't they have fluted? 	mustn't I have been fluting?
mustn't you have been fluting?
mustn't she have been fluting?
mustn't we have been fluting?
mustn't you have been fluting?
mustn't they have been fluting?