should begin
Verbo irregular: begin - began- begun

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'd begin
you'd begin
he'd begin
we'd begin
you'd begin
they'd begin 	I'd be beginning
you'd be beginning
he'd be beginning
we'd be beginning
you'd be beginning
they'd be beginning	I should've begun
you should've begun
he should've begun
we should've begun
you should've begun
they should've begun	I should've been beginning
you should've been beginning
he should've been beginning
we should've been beginning
you should've been beginning
they should've been beginning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shouldn't begin
you shouldn't begin
he shouldn't begin
we shouldn't begin
you shouldn't begin
they shouldn't begin 	I shouldn't be beginning
you shouldn't be beginning
he shouldn't be beginning
we shouldn't be beginning
you shouldn't be beginning
they shouldn't be beginning	I shouldn't have begun
you shouldn't have begun
he shouldn't have begun
we shouldn't have begun
you shouldn't have begun
they shouldn't have begun	I shouldn't have been beginning
you shouldn't have been beginning
he shouldn't have been beginning
we shouldn't have been beginning
you shouldn't have been beginning
they shouldn't have been beginning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I begin?
should you begin?
should he begin?
should we begin?
should you begin?
should they begin? 	should I be beginning?
should you be beginning?
should he be beginning?
should we be beginning?
should you be beginning?
should they be beginning? 	should I have begun?
should you have begun?
should he have begun?
should we have begun?
should you have begun?
should they have begun? 	should I have been beginning?
should you have been beginning?
should he have been beginning?
should we have been beginning?
should you have been beginning?
should they have been beginning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shouldn't I begin?
shouldn't you begin?
shouldn't he begin?
shouldn't we begin?
shouldn't you begin?
shouldn't they begin? 	shouldn't I be beginning?
shouldn't you be beginning?
shouldn't he be beginning?
shouldn't we be beginning?
shouldn't you be beginning?
shouldn't they be beginning? 	shouldn't I have begun?
shouldn't you have begun?
shouldn't he have begun?
shouldn't we have begun?
shouldn't you have begun?
shouldn't they have begun? 	shouldn't I have been beginning?
shouldn't you have been beginning?
shouldn't he have been beginning?
shouldn't we have been beginning?
shouldn't you have been beginning?
shouldn't they have been beginning?