must feather
Verbo regolare: feather - feathered- feathered

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must feather
you must feather
he must feather
we must feather
you must feather
they must feather 	I must be feathering
you must be feathering
he must be feathering
we must be feathering
you must be feathering
they must be feathering	I must have feathered
you must have feathered
he must have feathered
we must have feathered
you must have feathered
they must have feathered	I must have been feathering
you must have been feathering
he must have been feathering
we must have been feathering
you must have been feathering
they must have been feathering	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't feather
you mustn't feather
he mustn't feather
we mustn't feather
you mustn't feather
they mustn't feather 	I mustn't be feathering
you mustn't be feathering
he mustn't be feathering
we mustn't be feathering
you mustn't be feathering
they mustn't be feathering	I mustn't have feathered
you mustn't have feathered
he mustn't have feathered
we mustn't have feathered
you mustn't have feathered
they mustn't have feathered	I mustn't have been feathering
you mustn't have been feathering
he mustn't have been feathering
we mustn't have been feathering
you mustn't have been feathering
they mustn't have been feathering	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I feather?
must you feather?
must he feather?
must we feather?
must you feather?
must they feather? 	must I be feathering?
must you be feathering?
must he be feathering?
must we be feathering?
must you be feathering?
must they be feathering? 	must I have feathered?
must you have feathered?
must he have feathered?
must we have feathered?
must you have feathered?
must they have feathered? 	must I have been feathering?
must you have been feathering?
must he have been feathering?
must we have been feathering?
must you have been feathering?
must they have been feathering? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I feather?
mustn't you feather?
mustn't he feather?
mustn't we feather?
mustn't you feather?
mustn't they feather? 	mustn't I be feathering?
mustn't you be feathering?
mustn't he be feathering?
mustn't we be feathering?
mustn't you be feathering?
mustn't they be feathering? 	mustn't I have feathered?
mustn't you have feathered?
mustn't he have feathered?
mustn't we have feathered?
mustn't you have feathered?
mustn't they have feathered? 	mustn't I have been feathering?
mustn't you have been feathering?
mustn't he have been feathering?
mustn't we have been feathering?
mustn't you have been feathering?
mustn't they have been feathering?