Conjugación del verbo inglés COULD CONCENTRATE

Verbo regular: concentrate - concentrated - concentrated

Afirmación

Forma simple

I could concentrate
you could concentrate
she could concentrate
we could concentrate
you could concentrate
they could concentrate

Forma con V-ing

I could be concentrating
you could be concentrating
she could be concentrating
we could be concentrating
you could be concentrating
they could be concentrating

Perfecto

I could have concentrated
you could have concentrated
she could have concentrated
we could have concentrated
you could have concentrated
they could have concentrated

Perfecto con V-ing

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

Negación

Forma simple

I could not concentrate
you could not concentrate
she could not concentrate
we could not concentrate
you could not concentrate
they could not concentrate

Forma con V-ing

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

Perfecto

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

Perfecto con V-ing

I could not have been concentrating
you could not have been concentrating
she 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 she concentrate?
could we concentrate?
could you concentrate?
could they concentrate?

Forma con V-ing

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

Perfecto

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

Perfecto con V-ing

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

Forma interro-negativa

Forma simple

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

Forma con V-ing

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

Perfecto

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

Perfecto con V-ing

could I not have been concentrating?
could you not have been concentrating?
could she 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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