to concern
Verbo regular: concern - concerned- concerned

Indicativo 	
Presente 	Presente contínuo 	Pretérito 	Preterito contínuo 	
I concern
you concern
she concerns
we concern
you concern
they concern 	Iamconcerning
youareconcerning
sheisconcerning
weareconcerning
youareconcerning
theyareconcerning	I concerned
you concerned
she concerned
we concerned
you concerned
they concerned	Iwasconcerning
youwereconcerning
shewasconcerning
wewereconcerning
youwereconcerning
theywereconcerning	
Presente perfeito 	Presente perfeito contínuo 	Mais perfeito 	Contínuo mais perfeito 	
I have concerned
you have concerned
she has concerned
we have concerned
you have concerned
they have concerned	I have been concerning
you have been concerning
shehasbeen concerning
we have been concerning
you have been concerning
they have been concerning	I had concerned
you had concerned
she had concerned
we had concerned
you had concerned
they had concerned	I had been concerning
you had been concerning
she had been concerning
we had been concerning
you had been concerning
they had been concerning	
Futuro 	Futuro contínuo 	futuro perfeito 	futuro perfeito contínuo 	
I will concern
you will concern
she will concern
we will concern
you will concern
they will concern 	I will be concerning
you will be concerning
she will be concerning
we will be concerning
you will be concerning
they will be concerning	I will have concerned
you will have concerned
she will have concerned
we will have concerned
you will have concerned
they will have concerned	I will have been concerning
you will have been concerning
she will have been concerning
we will have been concerning
you will have been concerning
they will have been concerning	

Condicional 	
Presente 	Presente contínuo 	Passado 	Passado contínuo 	
I would concern
you would concern
she would concern
we would concern
you would concern
they would concern 	I would be concerning
you would be concerning
she would be concerning
we would be concerning
you would be concerning
they would be concerning	I would have concerned
you would have concerned
she would have concerned
we would have concerned
you would have concerned
they would have concerned	I would have been concerning
you would have been concerning
she would have been concerning
we would have been concerning
you would have been concerning
they would have been concerning	

Infinitivo 	
Imperativo 	
Infinitivo 	 	Imperativo 	 	
to concern 	 	concern
Let's concern
concern 	 	

Particípio 	
Presente 	Passado 	 	 	
concerning	concerned