Conjugación del verbo inglés COULD RESEARCH

Verbo regular: research - researched - researched

Afirmación

Forma simple

I could research
you could research
he could research
we could research
you could research
they could research

Forma con V-ing

I could be researching
you could be researching
he could be researching
we could be researching
you could be researching
they could be researching

Perfecto

I could have researched
you could have researched
he could have researched
we could have researched
you could have researched
they could have researched

Perfecto con V-ing

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

Negación

Forma simple

I could not research
you could not research
he could not research
we could not research
you could not research
they could not research

Forma con V-ing

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

Perfecto

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

Perfecto con V-ing

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

Forma interrogativa

Forma simple

could I research?
could you research?
could he research?
could we research?
could you research?
could they research?

Forma con V-ing

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

Perfecto

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

Perfecto con V-ing

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

Forma interro-negativa

Forma simple

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

Forma con V-ing

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

Perfecto

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

Perfecto con V-ing

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

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