must perish
Verbo regolare: perish - perished- perished

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must perish
you must perish
he must perish
we must perish
you must perish
they must perish 	I must be perishing
you must be perishing
he must be perishing
we must be perishing
you must be perishing
they must be perishing	I must have perished
you must have perished
he must have perished
we must have perished
you must have perished
they must have perished	I must have been perishing
you must have been perishing
he must have been perishing
we must have been perishing
you must have been perishing
they must have been perishing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't perish
you mustn't perish
he mustn't perish
we mustn't perish
you mustn't perish
they mustn't perish 	I mustn't be perishing
you mustn't be perishing
he mustn't be perishing
we mustn't be perishing
you mustn't be perishing
they mustn't be perishing	I mustn't have perished
you mustn't have perished
he mustn't have perished
we mustn't have perished
you mustn't have perished
they mustn't have perished	I mustn't have been perishing
you mustn't have been perishing
he mustn't have been perishing
we mustn't have been perishing
you mustn't have been perishing
they mustn't have been perishing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I perish?
must you perish?
must he perish?
must we perish?
must you perish?
must they perish? 	must I be perishing?
must you be perishing?
must he be perishing?
must we be perishing?
must you be perishing?
must they be perishing? 	must I have perished?
must you have perished?
must he have perished?
must we have perished?
must you have perished?
must they have perished? 	must I have been perishing?
must you have been perishing?
must he have been perishing?
must we have been perishing?
must you have been perishing?
must they have been perishing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I perish?
mustn't you perish?
mustn't he perish?
mustn't we perish?
mustn't you perish?
mustn't they perish? 	mustn't I be perishing?
mustn't you be perishing?
mustn't he be perishing?
mustn't we be perishing?
mustn't you be perishing?
mustn't they be perishing? 	mustn't I have perished?
mustn't you have perished?
mustn't he have perished?
mustn't we have perished?
mustn't you have perished?
mustn't they have perished? 	mustn't I have been perishing?
mustn't you have been perishing?
mustn't he have been perishing?
mustn't we have been perishing?
mustn't you have been perishing?
mustn't they have been perishing?