must summon
Verbo regular: summon - summoned- summoned

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must summon
you must summon
he must summon
we must summon
you must summon
they must summon 	I must be summoning
you must be summoning
he must be summoning
we must be summoning
you must be summoning
they must be summoning	I must have summoned
you must have summoned
he must have summoned
we must have summoned
you must have summoned
they must have summoned	I must have been summoning
you must have been summoning
he must have been summoning
we must have been summoning
you must have been summoning
they must have been summoning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't summon
you mustn't summon
he mustn't summon
we mustn't summon
you mustn't summon
they mustn't summon 	I mustn't be summoning
you mustn't be summoning
he mustn't be summoning
we mustn't be summoning
you mustn't be summoning
they mustn't be summoning	I mustn't have summoned
you mustn't have summoned
he mustn't have summoned
we mustn't have summoned
you mustn't have summoned
they mustn't have summoned	I mustn't have been summoning
you mustn't have been summoning
he mustn't have been summoning
we mustn't have been summoning
you mustn't have been summoning
they mustn't have been summoning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I summon?
must you summon?
must he summon?
must we summon?
must you summon?
must they summon? 	must I be summoning?
must you be summoning?
must he be summoning?
must we be summoning?
must you be summoning?
must they be summoning? 	must I have summoned?
must you have summoned?
must he have summoned?
must we have summoned?
must you have summoned?
must they have summoned? 	must I have been summoning?
must you have been summoning?
must he have been summoning?
must we have been summoning?
must you have been summoning?
must they have been summoning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I summon?
mustn't you summon?
mustn't he summon?
mustn't we summon?
mustn't you summon?
mustn't they summon? 	mustn't I be summoning?
mustn't you be summoning?
mustn't he be summoning?
mustn't we be summoning?
mustn't you be summoning?
mustn't they be summoning? 	mustn't I have summoned?
mustn't you have summoned?
mustn't he have summoned?
mustn't we have summoned?
mustn't you have summoned?
mustn't they have summoned? 	mustn't I have been summoning?
mustn't you have been summoning?
mustn't he have been summoning?
mustn't we have been summoning?
mustn't you have been summoning?
mustn't they have been summoning?