Conjugação do verbo inglês COULD CONCENTRATE

Verbo regular: concentrate - concentrated - concentrated

Afirmação

Forma simple

I could concentrate
you could concentrate
he could concentrate
we could concentrate
you could concentrate
they could concentrate

Forma com V-ing

I could be concentrating
you could be concentrating
he could be concentrating
we could be concentrating
you could be concentrating
they could be concentrating

Perfeito

I could have concentrated
you could have concentrated
he could have concentrated
we could have concentrated
you could have concentrated
they could have concentrated

Perfeito com V-ing

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

Negação

Forma simple

I could not concentrate
you could not concentrate
he could not concentrate
we could not concentrate
you could not concentrate
they could not concentrate

Forma com V-ing

I could not be concentrating
you could not be concentrating
he could not be concentrating
we could not be concentrating
you could not be concentrating
they could not be concentrating

Perfeito

I could not have concentrated
you could not have concentrated
he could not have concentrated
we could not have concentrated
you could not have concentrated
they could not have concentrated

Perfeito com V-ing

I could not have been concentrating
you could not have been concentrating
he could not have been concentrating
we could not have been concentrating
you could not have been concentrating
they could not have been concentrating

Forma interrogativa

Forma simple

could I concentrate?
could you concentrate?
could he concentrate?
could we concentrate?
could you concentrate?
could they concentrate?

Forma com V-ing

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

Perfeito

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

Perfeito com V-ing

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

Forma interro-Negação

Forma simple

could I not concentrate?
could you not concentrate?
could he not concentrate?
could we not concentrate?
could you not concentrate?
could they not concentrate?

Forma com V-ing

could I not be concentrating?
could you not be concentrating?
could he not be concentrating?
could we not be concentrating?
could you not be concentrating?
could they not be concentrating?

Perfeito

could I not have concentrated?
could you not have concentrated?
could he not have concentrated?
could we not have concentrated?
could you not have concentrated?
could they not have concentrated?

Perfeito com V-ing

could I not have been concentrating?
could you not have been concentrating?
could he not have been concentrating?
could we not have been concentrating?
could you not have been concentrating?
could they not have been concentrating?

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