must flute
Regular verb: flute - fluted- fluted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must flute
you must flute
he must flute
we must flute
you must flute
they must flute 	I must be fluting
you must be fluting
he must be fluting
we must be fluting
you must be fluting
they must be fluting	I must have fluted
you must have fluted
he 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
he 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 must not flute
you must not flute
he must not flute
we must not flute
you must not flute
they must not flute 	I must not be fluting
you must not be fluting
he must not be fluting
we must not be fluting
you must not be fluting
they must not be fluting	I must not have fluted
you must not have fluted
he must not have fluted
we must not have fluted
you must not have fluted
they must not have fluted	I must not have been fluting
you must not have been fluting
he must not have been fluting
we must not have been fluting
you must not have been fluting
they must not have been fluting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I flute?
must you flute?
must he flute?
must we flute?
must you flute?
must they flute? 	must I be fluting?
must you be fluting?
must he be fluting?
must we be fluting?
must you be fluting?
must they be fluting? 	must I have fluted?
must you have fluted?
must he 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 he 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 	
must I not flute?
must you not flute?
must he not flute?
must we not flute?
must you not flute?
must they not flute? 	must I not be fluting?
must you not be fluting?
must he not be fluting?
must we not be fluting?
must you not be fluting?
must they not be fluting? 	must I not have fluted?
must you not have fluted?
must he not have fluted?
must we not have fluted?
must you not have fluted?
must they not have fluted? 	must I not have been fluting?
must you not have been fluting?
must he not have been fluting?
must we not have been fluting?
must you not have been fluting?
must they not have been fluting?