shall quack
Verbo regular: quack - quacked- quacked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'll quack
you'll quack
he'll quack
we'll quack
you'll quack
they'll quack 	I'll be quacking
you'll be quacking
he'll be quacking
we'll be quacking
you'll be quacking
they'll be quacking	I'll have quacked
you'll have quacked
he'll have quacked
we'll have quacked
you'll have quacked
they'll have quacked	I'll have been quacking
you'll have been quacking
he'll have been quacking
we'll have been quacking
you'll have been quacking
they'll have been quacking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shan't quack
you shan't quack
he shan't quack
we shan't quack
you shan't quack
they shan't quack 	I shan't be quacking
you shan't be quacking
he shan't be quacking
we shan't be quacking
you shan't be quacking
they shan't be quacking	I shan't have quacked
you shan't have quacked
he shan't have quacked
we shan't have quacked
you shan't have quacked
they shan't have quacked	I shan't have been quacking
you shan't have been quacking
he shan't have been quacking
we shan't have been quacking
you shan't have been quacking
they shan't have been quacking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shall I quack?
shall you quack?
shall he quack?
shall we quack?
shall you quack?
shall they quack? 	shall I be quacking?
shall you be quacking?
shall he be quacking?
shall we be quacking?
shall you be quacking?
shall they be quacking? 	shall I have quacked?
shall you have quacked?
shall he have quacked?
shall we have quacked?
shall you have quacked?
shall they have quacked? 	shall I have been quacking?
shall you have been quacking?
shall he have been quacking?
shall we have been quacking?
shall you have been quacking?
shall they have been quacking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shan't I quack?
shan't you quack?
shan't he quack?
shan't we quack?
shan't you quack?
shan't they quack? 	shan't I be quacking?
shan't you be quacking?
shan't he be quacking?
shan't we be quacking?
shan't you be quacking?
shan't they be quacking? 	shan't I have quacked?
shan't you have quacked?
shan't he have quacked?
shan't we have quacked?
shan't you have quacked?
shan't they have quacked? 	shan't I have been quacking?
shan't you have been quacking?
shan't he have been quacking?
shan't we have been quacking?
shan't you have been quacking?
shan't they have been quacking?