Conjugação do verbo inglês
COULD OVERTURN

Verbo regular: overturn - overturned - overturned

Afirmação

Forma simple	Forma com V-ing
I could overturn you could overturn she could overturn we could overturn you could overturn they could overturn	I could be overturning you could be overturning she could be overturning we could be overturning you could be overturning they could be overturning
Perfeito	Perfeito com V-ing
I could have overturned you could have overturned she could have overturned we could have overturned you could have overturned they could have overturned	I could have been overturning you could have been overturning she could have been overturning we could have been overturning you could have been overturning they could have been overturning

Negação

Forma simple	Forma com V-ing
I could not overturn you could not overturn she could not overturn we could not overturn you could not overturn they could not overturn	I could not be overturning you could not be overturning she could not be overturning we could not be overturning you could not be overturning they could not be overturning
Perfeito	Perfeito com V-ing
I could not have overturned you could not have overturned she could not have overturned we could not have overturned you could not have overturned they could not have overturned	I could not have been overturning you could not have been overturning she could not have been overturning we could not have been overturning you could not have been overturning they could not have been overturning

Forma interrogativa

Forma simple	Forma com V-ing
could I overturn? could you overturn? could she overturn? could we overturn? could you overturn? could they overturn?	could I be overturning? could you be overturning? could she be overturning? could we be overturning? could you be overturning? could they be overturning?
Perfeito	Perfeito com V-ing
could I have overturned? could you have overturned? could she have overturned? could we have overturned? could you have overturned? could they have overturned?	could I have been overturning? could you have been overturning? could she have been overturning? could we have been overturning? could you have been overturning? could they have been overturning?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not overturn? could you not overturn? could she not overturn? could we not overturn? could you not overturn? could they not overturn?	could I not be overturning? could you not be overturning? could she not be overturning? could we not be overturning? could you not be overturning? could they not be overturning?
Perfeito	Perfeito com V-ing
could I not have overturned? could you not have overturned? could she not have overturned? could we not have overturned? could you not have overturned? could they not have overturned?	could I not have been overturning? could you not have been overturning? could she not have been overturning? could we not have been overturning? could you not have been overturning? could they not have been overturning?