must shingle
Verbo regular: shingle - shingled- shingled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must shingle
you must shingle
he must shingle
we must shingle
you must shingle
they must shingle 	I must be shingling
you must be shingling
he must be shingling
we must be shingling
you must be shingling
they must be shingling	I must have shingled
you must have shingled
he must have shingled
we must have shingled
you must have shingled
they must have shingled	I must have been shingling
you must have been shingling
he must have been shingling
we must have been shingling
you must have been shingling
they must have been shingling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't shingle
you mustn't shingle
he mustn't shingle
we mustn't shingle
you mustn't shingle
they mustn't shingle 	I mustn't be shingling
you mustn't be shingling
he mustn't be shingling
we mustn't be shingling
you mustn't be shingling
they mustn't be shingling	I mustn't have shingled
you mustn't have shingled
he mustn't have shingled
we mustn't have shingled
you mustn't have shingled
they mustn't have shingled	I mustn't have been shingling
you mustn't have been shingling
he mustn't have been shingling
we mustn't have been shingling
you mustn't have been shingling
they mustn't have been shingling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I shingle?
must you shingle?
must he shingle?
must we shingle?
must you shingle?
must they shingle? 	must I be shingling?
must you be shingling?
must he be shingling?
must we be shingling?
must you be shingling?
must they be shingling? 	must I have shingled?
must you have shingled?
must he have shingled?
must we have shingled?
must you have shingled?
must they have shingled? 	must I have been shingling?
must you have been shingling?
must he have been shingling?
must we have been shingling?
must you have been shingling?
must they have been shingling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I shingle?
mustn't you shingle?
mustn't he shingle?
mustn't we shingle?
mustn't you shingle?
mustn't they shingle? 	mustn't I be shingling?
mustn't you be shingling?
mustn't he be shingling?
mustn't we be shingling?
mustn't you be shingling?
mustn't they be shingling? 	mustn't I have shingled?
mustn't you have shingled?
mustn't he have shingled?
mustn't we have shingled?
mustn't you have shingled?
mustn't they have shingled? 	mustn't I have been shingling?
mustn't you have been shingling?
mustn't he have been shingling?
mustn't we have been shingling?
mustn't you have been shingling?
mustn't they have been shingling?