to concern
Verbo regular: concern - concerned- concerned

Indicativo 	
Presente 	Presente continuo 	Pretérito 	Pretérito continuo 	
I do not concern
you do not concern
he doesnot concern
we do not concern
you do not concern
they do not concern 	Iamnot concerning
youarenot concerning
heisnot concerning
wearenot concerning
youarenot concerning
theyarenot concerning	I did not concern
you did not concern
he did not concern
we did not concern
you did not concern
they did not concern 	Iwasnot concerning
youwerenot concerning
hewasnot concerning
wewerenot concerning
youwerenot concerning
theywerenot concerning	
Presente perfecto 	Presente perfecto continuo 	Pluscuamperfecto 	Pluscuamperfecto continuo 	
I have not concerned
you have not concerned
hehasnot concerned
we have not concerned
you have not concerned
they have not concerned	I have not  been concerning
you have not  been concerning
hehasnot  been concerning
we have not  been concerning
you have not  been concerning
they have not  been concerning	I had not concerned
you had not concerned
he had not concerned
we had not concerned
you had not concerned
they had not concerned	I had not been concerning
you had not been concerning
he had not been concerning
we had not been concerning
you had not been concerning
they had not been concerning	
Futuro simple 	Futuro continuo 	Futuro perfecto 	Futuro perfecto contínuo 	
I will not concern
you will not concern
he will not concern
we will not concern
you will not concern
they will not concern 	I will not be concerning
you will not be concerning
he will not be concerning
we will not be concerning
you will not be concerning
they will not be concerning	I will not have concerned
you will not have concerned
he will not have concerned
we will not have concerned
you will not have concerned
they will not have concerned	I will not have been concerning
you will not have been concerning
he will not have been concerning
we will not have been concerning
you will not have been concerning
they will not have been concerning	

Condicional 	
Presente 	Presente continuo 	Passado 	Passado continuo 	
I would not concern
you would not concern
he would not concern
we would not concern
you would not concern
they would not concern 	I would not be concerning
you would not be concerning
he would not be concerning
we would not be concerning
you would not be concerning
they would not be concerning	I would not have concerned
you would not have concerned
he would not have concerned
we would not have concerned
you would not have concerned
they would not have concerned	I would not have been concerning
you would not have been concerning
he would not have been concerning
we would not have been concerning
you would not have been concerning
they would not have been concerning	

Infinitivo 	
Imperativo 	
Infinitivo 	 	Imperativo 	 	
to concern 	 	do not concern
Let's not concern
do not concern 	 	

Participio 	
Presente 	Passado 	 	 	
concerning	concerned