Conjugação do verbo inglês COULD RESEARCH

Verbo regular: research - researched - researched

Afirmação

Forma simple

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

Forma com 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

Perfeito

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

Perfeito com 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

Negação

Forma simple

I couldn't research
you couldn't research
he couldn't research
we couldn't research
you couldn't research
they couldn't research

Forma com V-ing

I couldn't be researching
you couldn't be researching
he couldn't be researching
we couldn't be researching
you couldn't be researching
they couldn't be researching

Perfeito

I couldn't have researched
you couldn't have researched
he couldn't have researched
we couldn't have researched
you couldn't have researched
they couldn't have researched

Perfeito com V-ing

I couldn't have been researching
you couldn't have been researching
he couldn't have been researching
we couldn't have been researching
you couldn't have been researching
they couldn't 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 com 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?

Perfeito

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

Perfeito com 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-Negação

Forma simple

couldn't I research?
couldn't you research?
couldn't he research?
couldn't we research?
couldn't you research?
couldn't they research?

Forma com V-ing

couldn't I be researching?
couldn't you be researching?
couldn't he be researching?
couldn't we be researching?
couldn't you be researching?
couldn't they be researching?

Perfeito

couldn't I have researched?
couldn't you have researched?
couldn't he have researched?
couldn't we have researched?
couldn't you have researched?
couldn't they have researched?

Perfeito com V-ing

couldn't I have been researching?
couldn't you have been researching?
couldn't he have been researching?
couldn't we have been researching?
couldn't you have been researching?
couldn't they have been researching?

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