Conjugación del verbo inglés
SHOULD CONCERN

Verbo regular: concern - concerned - concerned

Afirmación

Forma simple	Forma con V-ing
I should concern you should concern he should concern we should concern you should concern they should concern	I should be concerning you should be concerning he should be concerning we should be concerning you should be concerning they should be concerning
Perfecto	Perfecto con V-ing
I should have concerned you should have concerned he should have concerned we should have concerned you should have concerned they should have concerned	I should have been concerning you should have been concerning he should have been concerning we should have been concerning you should have been concerning they should have been concerning

Negación

Forma simple	Forma con V-ing
I should not concern you should not concern he should not concern we should not concern you should not concern they should not concern	I should not be concerning you should not be concerning he should not be concerning we should not be concerning you should not be concerning they should not be concerning
Perfecto	Perfecto con V-ing
I should not have concerned you should not have concerned he should not have concerned we should not have concerned you should not have concerned they should not have concerned	I should not have been concerning you should not have been concerning he should not have been concerning we should not have been concerning you should not have been concerning they should not have been concerning

Forma interrogativa

Forma simple	Forma con V-ing
should I concern? should you concern? should he concern? should we concern? should you concern? should they concern?	should I be concerning? should you be concerning? should he be concerning? should we be concerning? should you be concerning? should they be concerning?
Perfecto	Perfecto con V-ing
should I have concerned? should you have concerned? should he have concerned? should we have concerned? should you have concerned? should they have concerned?	should I have been concerning? should you have been concerning? should he have been concerning? should we have been concerning? should you have been concerning? should they have been concerning?

Forma interro-negativa

Forma simple	Forma con V-ing
should I not concern? should you not concern? should he not concern? should we not concern? should you not concern? should they not concern?	should I not be concerning? should you not be concerning? should he not be concerning? should we not be concerning? should you not be concerning? should they not be concerning?
Perfecto	Perfecto con V-ing
should I not have concerned? should you not have concerned? should he not have concerned? should we not have concerned? should you not have concerned? should they not have concerned?	should I not have been concerning? should you not have been concerning? should he not have been concerning? should we not have been concerning? should you not have been concerning? should they not have been concerning?