Conjugación del verbo inglés
COULD TARNISH

Verbo regular: tarnish - tarnished - tarnished

Afirmación

Forma simple	Forma con V-ing
I could tarnish you could tarnish she could tarnish we could tarnish you could tarnish they could tarnish	I could be tarnishing you could be tarnishing she could be tarnishing we could be tarnishing you could be tarnishing they could be tarnishing
Perfecto	Perfecto con V-ing
I could have tarnished you could have tarnished she could have tarnished we could have tarnished you could have tarnished they could have tarnished	I could have been tarnishing you could have been tarnishing she could have been tarnishing we could have been tarnishing you could have been tarnishing they could have been tarnishing

Negación

Forma simple	Forma con V-ing
I could not tarnish you could not tarnish she could not tarnish we could not tarnish you could not tarnish they could not tarnish	I could not be tarnishing you could not be tarnishing she could not be tarnishing we could not be tarnishing you could not be tarnishing they could not be tarnishing
Perfecto	Perfecto con V-ing
I could not have tarnished you could not have tarnished she could not have tarnished we could not have tarnished you could not have tarnished they could not have tarnished	I could not have been tarnishing you could not have been tarnishing she could not have been tarnishing we could not have been tarnishing you could not have been tarnishing they could not have been tarnishing

Forma interrogativa

Forma simple	Forma con V-ing
could I tarnish? could you tarnish? could she tarnish? could we tarnish? could you tarnish? could they tarnish?	could I be tarnishing? could you be tarnishing? could she be tarnishing? could we be tarnishing? could you be tarnishing? could they be tarnishing?
Perfecto	Perfecto con V-ing
could I have tarnished? could you have tarnished? could she have tarnished? could we have tarnished? could you have tarnished? could they have tarnished?	could I have been tarnishing? could you have been tarnishing? could she have been tarnishing? could we have been tarnishing? could you have been tarnishing? could they have been tarnishing?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not tarnish? could you not tarnish? could she not tarnish? could we not tarnish? could you not tarnish? could they not tarnish?	could I not be tarnishing? could you not be tarnishing? could she not be tarnishing? could we not be tarnishing? could you not be tarnishing? could they not be tarnishing?
Perfecto	Perfecto con V-ing
could I not have tarnished? could you not have tarnished? could she not have tarnished? could we not have tarnished? could you not have tarnished? could they not have tarnished?	could I not have been tarnishing? could you not have been tarnishing? could she not have been tarnishing? could we not have been tarnishing? could you not have been tarnishing? could they not have been tarnishing?