Conjugación del verbo inglés COULD SIFT

Verbo regular: sift - sifted - sifted

Afirmación

Forma simple

I could sift
you could sift
he could sift
we could sift
you could sift
they could sift

Forma con V-ing

I could be sifting
you could be sifting
he could be sifting
we could be sifting
you could be sifting
they could be sifting

Perfecto

I could have sifted
you could have sifted
he could have sifted
we could have sifted
you could have sifted
they could have sifted

Perfecto con V-ing

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

Negación

Forma simple

I could not sift
you could not sift
he could not sift
we could not sift
you could not sift
they could not sift

Forma con V-ing

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

Perfecto

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

Perfecto con V-ing

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

Forma interrogativa

Forma simple

could I sift?
could you sift?
could he sift?
could we sift?
could you sift?
could they sift?

Forma con V-ing

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

Perfecto

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

Perfecto con V-ing

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

Forma interro-negativa

Forma simple

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

Forma con V-ing

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

Perfecto

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

Perfecto con V-ing

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

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