Conjugación del verbo inglés COULD CONCERN
Verbo regular: concern - concerned - concerned
Afirmación
Forma simple
I could concernyou could concern
he could concern
we could concern
you could concern
they could concern
Forma con V-ing
I could be concerningyou could be concerning
he could be concerning
we could be concerning
you could be concerning
they could be concerning
Perfecto
I could have concernedyou could have concerned
he could have concerned
we could have concerned
you could have concerned
they could have concerned
Perfecto con V-ing
I could have been concerningyou could have been concerning
he could have been concerning
we could have been concerning
you could have been concerning
they could have been concerning
Negación
Forma simple
I couldn't concernyou couldn't concern
he couldn't concern
we couldn't concern
you couldn't concern
they couldn't concern
Forma con V-ing
I couldn't be concerningyou couldn't be concerning
he couldn't be concerning
we couldn't be concerning
you couldn't be concerning
they couldn't be concerning
Perfecto
I couldn't have concernedyou couldn't have concerned
he couldn't have concerned
we couldn't have concerned
you couldn't have concerned
they couldn't have concerned
Perfecto con V-ing
I couldn't have been concerningyou couldn't have been concerning
he couldn't have been concerning
we couldn't have been concerning
you couldn't have been concerning
they couldn't have been concerning
Forma interrogativa
Forma simple
could I concern?could you concern?
could he concern?
could we concern?
could you concern?
could they concern?
Forma con V-ing
could I be concerning?could you be concerning?
could he be concerning?
could we be concerning?
could you be concerning?
could they be concerning?
Perfecto
could I have concerned?could you have concerned?
could he have concerned?
could we have concerned?
could you have concerned?
could they have concerned?
Perfecto con V-ing
could I have been concerning?could you have been concerning?
could he have been concerning?
could we have been concerning?
could you have been concerning?
could they have been concerning?
Forma interro-negativa
Forma simple
couldn't I concern?couldn't you concern?
couldn't he concern?
couldn't we concern?
couldn't you concern?
couldn't they concern?
Forma con V-ing
couldn't I be concerning?couldn't you be concerning?
couldn't he be concerning?
couldn't we be concerning?
couldn't you be concerning?
couldn't they be concerning?
Perfecto
couldn't I have concerned?couldn't you have concerned?
couldn't he have concerned?
couldn't we have concerned?
couldn't you have concerned?
couldn't they have concerned?
Perfecto con V-ing
couldn't I have been concerning?couldn't you have been concerning?
couldn't he have been concerning?
couldn't we have been concerning?
couldn't you have been concerning?
couldn't they have been concerning?