shall concern
Verbo regular: concern - concerned- concerned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'll concern
you'll concern
she'll concern
we'll concern
you'll concern
they'll concern 	I'll be concerning
you'll be concerning
she'll be concerning
we'll be concerning
you'll be concerning
they'll be concerning	I'll have concerned
you'll have concerned
she'll have concerned
we'll have concerned
you'll have concerned
they'll have concerned	I'll have been concerning
you'll have been concerning
she'll have been concerning
we'll have been concerning
you'll have been concerning
they'll have been concerning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shan't concern
you shan't concern
she shan't concern
we shan't concern
you shan't concern
they shan't concern 	I shan't be concerning
you shan't be concerning
she shan't be concerning
we shan't be concerning
you shan't be concerning
they shan't be concerning	I shan't have concerned
you shan't have concerned
she shan't have concerned
we shan't have concerned
you shan't have concerned
they shan't have concerned	I shan't have been concerning
you shan't have been concerning
she shan't have been concerning
we shan't have been concerning
you shan't have been concerning
they shan't have been concerning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shall I concern?
shall you concern?
shall she concern?
shall we concern?
shall you concern?
shall they concern? 	shall I be concerning?
shall you be concerning?
shall she be concerning?
shall we be concerning?
shall you be concerning?
shall they be concerning? 	shall I have concerned?
shall you have concerned?
shall she have concerned?
shall we have concerned?
shall you have concerned?
shall they have concerned? 	shall I have been concerning?
shall you have been concerning?
shall she have been concerning?
shall we have been concerning?
shall you have been concerning?
shall they have been concerning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shan't I concern?
shan't you concern?
shan't she concern?
shan't we concern?
shan't you concern?
shan't they concern? 	shan't I be concerning?
shan't you be concerning?
shan't she be concerning?
shan't we be concerning?
shan't you be concerning?
shan't they be concerning? 	shan't I have concerned?
shan't you have concerned?
shan't she have concerned?
shan't we have concerned?
shan't you have concerned?
shan't they have concerned? 	shan't I have been concerning?
shan't you have been concerning?
shan't she have been concerning?
shan't we have been concerning?
shan't you have been concerning?
shan't they have been concerning?