must summer
Verbo regolare: summer - summered- summered

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must summer
you must summer
he must summer
we must summer
you must summer
they must summer 	I must be summering
you must be summering
he must be summering
we must be summering
you must be summering
they must be summering	I must have summered
you must have summered
he must have summered
we must have summered
you must have summered
they must have summered	I must have been summering
you must have been summering
he must have been summering
we must have been summering
you must have been summering
they must have been summering	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't summer
you mustn't summer
he mustn't summer
we mustn't summer
you mustn't summer
they mustn't summer 	I mustn't be summering
you mustn't be summering
he mustn't be summering
we mustn't be summering
you mustn't be summering
they mustn't be summering	I mustn't have summered
you mustn't have summered
he mustn't have summered
we mustn't have summered
you mustn't have summered
they mustn't have summered	I mustn't have been summering
you mustn't have been summering
he mustn't have been summering
we mustn't have been summering
you mustn't have been summering
they mustn't have been summering	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I summer?
must you summer?
must he summer?
must we summer?
must you summer?
must they summer? 	must I be summering?
must you be summering?
must he be summering?
must we be summering?
must you be summering?
must they be summering? 	must I have summered?
must you have summered?
must he have summered?
must we have summered?
must you have summered?
must they have summered? 	must I have been summering?
must you have been summering?
must he have been summering?
must we have been summering?
must you have been summering?
must they have been summering? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I summer?
mustn't you summer?
mustn't he summer?
mustn't we summer?
mustn't you summer?
mustn't they summer? 	mustn't I be summering?
mustn't you be summering?
mustn't he be summering?
mustn't we be summering?
mustn't you be summering?
mustn't they be summering? 	mustn't I have summered?
mustn't you have summered?
mustn't he have summered?
mustn't we have summered?
mustn't you have summered?
mustn't they have summered? 	mustn't I have been summering?
mustn't you have been summering?
mustn't he have been summering?
mustn't we have been summering?
mustn't you have been summering?
mustn't they have been summering?