Conjugación del verbo inglés
COULD HEIGHTEN

Verbo regular: heighten - heightened - heightened

Afirmación

Forma simple	Forma con V-ing
I could heighten you could heighten she could heighten we could heighten you could heighten they could heighten	I could be heightening you could be heightening she could be heightening we could be heightening you could be heightening they could be heightening
Perfecto	Perfecto con V-ing
I could have heightened you could have heightened she could have heightened we could have heightened you could have heightened they could have heightened	I could have been heightening you could have been heightening she could have been heightening we could have been heightening you could have been heightening they could have been heightening

Negación

Forma simple	Forma con V-ing
I could not heighten you could not heighten she could not heighten we could not heighten you could not heighten they could not heighten	I could not be heightening you could not be heightening she could not be heightening we could not be heightening you could not be heightening they could not be heightening
Perfecto	Perfecto con V-ing
I could not have heightened you could not have heightened she could not have heightened we could not have heightened you could not have heightened they could not have heightened	I could not have been heightening you could not have been heightening she could not have been heightening we could not have been heightening you could not have been heightening they could not have been heightening

Forma interrogativa

Forma simple	Forma con V-ing
could I heighten? could you heighten? could she heighten? could we heighten? could you heighten? could they heighten?	could I be heightening? could you be heightening? could she be heightening? could we be heightening? could you be heightening? could they be heightening?
Perfecto	Perfecto con V-ing
could I have heightened? could you have heightened? could she have heightened? could we have heightened? could you have heightened? could they have heightened?	could I have been heightening? could you have been heightening? could she have been heightening? could we have been heightening? could you have been heightening? could they have been heightening?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not heighten? could you not heighten? could she not heighten? could we not heighten? could you not heighten? could they not heighten?	could I not be heightening? could you not be heightening? could she not be heightening? could we not be heightening? could you not be heightening? could they not be heightening?
Perfecto	Perfecto con V-ing
could I not have heightened? could you not have heightened? could she not have heightened? could we not have heightened? could you not have heightened? could they not have heightened?	could I not have been heightening? could you not have been heightening? could she not have been heightening? could we not have been heightening? could you not have been heightening? could they not have been heightening?