Conjugação do verbo inglês COULD CONCENTER

Verbo regular: concenter - concentered - concentered

Afirmação

Forma simple

I could concenter
you could concenter
he could concenter
we could concenter
you could concenter
they could concenter

Forma com V-ing

I could be concentering
you could be concentering
he could be concentering
we could be concentering
you could be concentering
they could be concentering

Perfeito

I could have concentered
you could have concentered
he could have concentered
we could have concentered
you could have concentered
they could have concentered

Perfeito com V-ing

I could have been concentering
you could have been concentering
he could have been concentering
we could have been concentering
you could have been concentering
they could have been concentering

Negação

Forma simple

I couldn't concenter
you couldn't concenter
he couldn't concenter
we couldn't concenter
you couldn't concenter
they couldn't concenter

Forma com V-ing

I couldn't be concentering
you couldn't be concentering
he couldn't be concentering
we couldn't be concentering
you couldn't be concentering
they couldn't be concentering

Perfeito

I couldn't have concentered
you couldn't have concentered
he couldn't have concentered
we couldn't have concentered
you couldn't have concentered
they couldn't have concentered

Perfeito com V-ing

I couldn't have been concentering
you couldn't have been concentering
he couldn't have been concentering
we couldn't have been concentering
you couldn't have been concentering
they couldn't have been concentering

Forma interrogativa

Forma simple

could I concenter?
could you concenter?
could he concenter?
could we concenter?
could you concenter?
could they concenter?

Forma com V-ing

could I be concentering?
could you be concentering?
could he be concentering?
could we be concentering?
could you be concentering?
could they be concentering?

Perfeito

could I have concentered?
could you have concentered?
could he have concentered?
could we have concentered?
could you have concentered?
could they have concentered?

Perfeito com V-ing

could I have been concentering?
could you have been concentering?
could he have been concentering?
could we have been concentering?
could you have been concentering?
could they have been concentering?

Forma interro-Negação

Forma simple

couldn't I concenter?
couldn't you concenter?
couldn't he concenter?
couldn't we concenter?
couldn't you concenter?
couldn't they concenter?

Forma com V-ing

couldn't I be concentering?
couldn't you be concentering?
couldn't he be concentering?
couldn't we be concentering?
couldn't you be concentering?
couldn't they be concentering?

Perfeito

couldn't I have concentered?
couldn't you have concentered?
couldn't he have concentered?
couldn't we have concentered?
couldn't you have concentered?
couldn't they have concentered?

Perfeito com V-ing

couldn't I have been concentering?
couldn't you have been concentering?
couldn't he have been concentering?
couldn't we have been concentering?
couldn't you have been concentering?
couldn't they have been concentering?

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