Conjugación del verbo inglés COULD SIFT

Verbo regular: sift - sifted - sifted

Afirmación

Forma simple

I could sift
you could sift
she could sift
we could sift
you could sift
they could sift

Forma con V-ing

I could be sifting
you could be sifting
she could be sifting
we could be sifting
you could be sifting
they could be sifting

Perfecto

I could have sifted
you could have sifted
she 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
she could have been sifting
we could have been sifting
you could have been sifting
they could have been sifting

Negación

Forma simple

I couldn't sift
you couldn't sift
she couldn't sift
we couldn't sift
you couldn't sift
they couldn't sift

Forma con V-ing

I couldn't be sifting
you couldn't be sifting
she couldn't be sifting
we couldn't be sifting
you couldn't be sifting
they couldn't be sifting

Perfecto

I couldn't have sifted
you couldn't have sifted
she couldn't have sifted
we couldn't have sifted
you couldn't have sifted
they couldn't have sifted

Perfecto con V-ing

I couldn't have been sifting
you couldn't have been sifting
she couldn't have been sifting
we couldn't have been sifting
you couldn't have been sifting
they couldn't have been sifting

Forma interrogativa

Forma simple

could I sift?
could you sift?
could she sift?
could we sift?
could you sift?
could they sift?

Forma con V-ing

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

Perfecto

could I have sifted?
could you have sifted?
could she 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 she have been sifting?
could we have been sifting?
could you have been sifting?
could they have been sifting?

Forma interro-negativa

Forma simple

couldn't I sift?
couldn't you sift?
couldn't she sift?
couldn't we sift?
couldn't you sift?
couldn't they sift?

Forma con V-ing

couldn't I be sifting?
couldn't you be sifting?
couldn't she be sifting?
couldn't we be sifting?
couldn't you be sifting?
couldn't they be sifting?

Perfecto

couldn't I have sifted?
couldn't you have sifted?
couldn't she have sifted?
couldn't we have sifted?
couldn't you have sifted?
couldn't they have sifted?

Perfecto con V-ing

couldn't I have been sifting?
couldn't you have been sifting?
couldn't she have been sifting?
couldn't we have been sifting?
couldn't you have been sifting?
couldn't they have been sifting?

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