Conjugación del verbo inglés
COULD OVERGRADE

Verbo regular: overgrade - overgraded - overgraded

Afirmación

Forma simple	Forma con V-ing
I could overgrade you could overgrade he could overgrade we could overgrade you could overgrade they could overgrade	I could be overgrading you could be overgrading he could be overgrading we could be overgrading you could be overgrading they could be overgrading
Perfecto	Perfecto con V-ing
I could have overgraded you could have overgraded he could have overgraded we could have overgraded you could have overgraded they could have overgraded	I could have been overgrading you could have been overgrading he could have been overgrading we could have been overgrading you could have been overgrading they could have been overgrading

Negación

Forma simple	Forma con V-ing
I couldn't overgrade you couldn't overgrade he couldn't overgrade we couldn't overgrade you couldn't overgrade they couldn't overgrade	I couldn't be overgrading you couldn't be overgrading he couldn't be overgrading we couldn't be overgrading you couldn't be overgrading they couldn't be overgrading
Perfecto	Perfecto con V-ing
I couldn't have overgraded you couldn't have overgraded he couldn't have overgraded we couldn't have overgraded you couldn't have overgraded they couldn't have overgraded	I couldn't have been overgrading you couldn't have been overgrading he couldn't have been overgrading we couldn't have been overgrading you couldn't have been overgrading they couldn't have been overgrading

Forma interrogativa

Forma simple	Forma con V-ing
could I overgrade? could you overgrade? could he overgrade? could we overgrade? could you overgrade? could they overgrade?	could I be overgrading? could you be overgrading? could he be overgrading? could we be overgrading? could you be overgrading? could they be overgrading?
Perfecto	Perfecto con V-ing
could I have overgraded? could you have overgraded? could he have overgraded? could we have overgraded? could you have overgraded? could they have overgraded?	could I have been overgrading? could you have been overgrading? could he have been overgrading? could we have been overgrading? could you have been overgrading? could they have been overgrading?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I overgrade? couldn't you overgrade? couldn't he overgrade? couldn't we overgrade? couldn't you overgrade? couldn't they overgrade?	couldn't I be overgrading? couldn't you be overgrading? couldn't he be overgrading? couldn't we be overgrading? couldn't you be overgrading? couldn't they be overgrading?
Perfecto	Perfecto con V-ing
couldn't I have overgraded? couldn't you have overgraded? couldn't he have overgraded? couldn't we have overgraded? couldn't you have overgraded? couldn't they have overgraded?	couldn't I have been overgrading? couldn't you have been overgrading? couldn't he have been overgrading? couldn't we have been overgrading? couldn't you have been overgrading? couldn't they have been overgrading?