Conjugación del verbo inglés COULD CERTIFY

Verbo regular: certify - certified - certified

Afirmación

Forma simple

I could certify
you could certify
she could certify
we could certify
you could certify
they could certify

Forma con V-ing

I could be certifying
you could be certifying
she could be certifying
we could be certifying
you could be certifying
they could be certifying

Perfecto

I could have certified
you could have certified
she could have certified
we could have certified
you could have certified
they could have certified

Perfecto con V-ing

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

Negación

Forma simple

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

Forma con V-ing

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

Perfecto

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

Perfecto con V-ing

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

Forma interrogativa

Forma simple

could I certify?
could you certify?
could she certify?
could we certify?
could you certify?
could they certify?

Forma con V-ing

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

Perfecto

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

Perfecto con V-ing

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

Forma interro-negativa

Forma simple

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

Forma con V-ing

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

Perfecto

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

Perfecto con V-ing

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

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