must plumb
Verbo regolare: plumb - plumbed- plumbed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must plumb
you must plumb
he must plumb
we must plumb
you must plumb
they must plumb 	I must be plumbing
you must be plumbing
he must be plumbing
we must be plumbing
you must be plumbing
they must be plumbing	I must have plumbed
you must have plumbed
he must have plumbed
we must have plumbed
you must have plumbed
they must have plumbed	I must have been plumbing
you must have been plumbing
he must have been plumbing
we must have been plumbing
you must have been plumbing
they must have been plumbing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't plumb
you mustn't plumb
he mustn't plumb
we mustn't plumb
you mustn't plumb
they mustn't plumb 	I mustn't be plumbing
you mustn't be plumbing
he mustn't be plumbing
we mustn't be plumbing
you mustn't be plumbing
they mustn't be plumbing	I mustn't have plumbed
you mustn't have plumbed
he mustn't have plumbed
we mustn't have plumbed
you mustn't have plumbed
they mustn't have plumbed	I mustn't have been plumbing
you mustn't have been plumbing
he mustn't have been plumbing
we mustn't have been plumbing
you mustn't have been plumbing
they mustn't have been plumbing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I plumb?
must you plumb?
must he plumb?
must we plumb?
must you plumb?
must they plumb? 	must I be plumbing?
must you be plumbing?
must he be plumbing?
must we be plumbing?
must you be plumbing?
must they be plumbing? 	must I have plumbed?
must you have plumbed?
must he have plumbed?
must we have plumbed?
must you have plumbed?
must they have plumbed? 	must I have been plumbing?
must you have been plumbing?
must he have been plumbing?
must we have been plumbing?
must you have been plumbing?
must they have been plumbing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I plumb?
mustn't you plumb?
mustn't he plumb?
mustn't we plumb?
mustn't you plumb?
mustn't they plumb? 	mustn't I be plumbing?
mustn't you be plumbing?
mustn't he be plumbing?
mustn't we be plumbing?
mustn't you be plumbing?
mustn't they be plumbing? 	mustn't I have plumbed?
mustn't you have plumbed?
mustn't he have plumbed?
mustn't we have plumbed?
mustn't you have plumbed?
mustn't they have plumbed? 	mustn't I have been plumbing?
mustn't you have been plumbing?
mustn't he have been plumbing?
mustn't we have been plumbing?
mustn't you have been plumbing?
mustn't they have been plumbing?