must flap
Verbo regolare: flap - flapped- flapped

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must flap
you must flap
he must flap
we must flap
you must flap
they must flap 	I must be flapping
you must be flapping
he must be flapping
we must be flapping
you must be flapping
they must be flapping	I must have flapped
you must have flapped
he must have flapped
we must have flapped
you must have flapped
they must have flapped	I must have been flapping
you must have been flapping
he must have been flapping
we must have been flapping
you must have been flapping
they must have been flapping	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't flap
you mustn't flap
he mustn't flap
we mustn't flap
you mustn't flap
they mustn't flap 	I mustn't be flapping
you mustn't be flapping
he mustn't be flapping
we mustn't be flapping
you mustn't be flapping
they mustn't be flapping	I mustn't have flapped
you mustn't have flapped
he mustn't have flapped
we mustn't have flapped
you mustn't have flapped
they mustn't have flapped	I mustn't have been flapping
you mustn't have been flapping
he mustn't have been flapping
we mustn't have been flapping
you mustn't have been flapping
they mustn't have been flapping	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I flap?
must you flap?
must he flap?
must we flap?
must you flap?
must they flap? 	must I be flapping?
must you be flapping?
must he be flapping?
must we be flapping?
must you be flapping?
must they be flapping? 	must I have flapped?
must you have flapped?
must he have flapped?
must we have flapped?
must you have flapped?
must they have flapped? 	must I have been flapping?
must you have been flapping?
must he have been flapping?
must we have been flapping?
must you have been flapping?
must they have been flapping? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I flap?
mustn't you flap?
mustn't he flap?
mustn't we flap?
mustn't you flap?
mustn't they flap? 	mustn't I be flapping?
mustn't you be flapping?
mustn't he be flapping?
mustn't we be flapping?
mustn't you be flapping?
mustn't they be flapping? 	mustn't I have flapped?
mustn't you have flapped?
mustn't he have flapped?
mustn't we have flapped?
mustn't you have flapped?
mustn't they have flapped? 	mustn't I have been flapping?
mustn't you have been flapping?
mustn't he have been flapping?
mustn't we have been flapping?
mustn't you have been flapping?
mustn't they have been flapping?