Conjugação do verbo inglês
COULD DOWNGRADE

Verbo regular: downgrade - downgraded - downgraded

Afirmação

Forma simple	Forma com V-ing
I could downgrade you could downgrade she could downgrade we could downgrade you could downgrade they could downgrade	I could be downgrading you could be downgrading she could be downgrading we could be downgrading you could be downgrading they could be downgrading
Perfeito	Perfeito com V-ing
I could have downgraded you could have downgraded she could have downgraded we could have downgraded you could have downgraded they could have downgraded	I could have been downgrading you could have been downgrading she could have been downgrading we could have been downgrading you could have been downgrading they could have been downgrading

Negação

Forma simple	Forma com V-ing
I couldn't downgrade you couldn't downgrade she couldn't downgrade we couldn't downgrade you couldn't downgrade they couldn't downgrade	I couldn't be downgrading you couldn't be downgrading she couldn't be downgrading we couldn't be downgrading you couldn't be downgrading they couldn't be downgrading
Perfeito	Perfeito com V-ing
I couldn't have downgraded you couldn't have downgraded she couldn't have downgraded we couldn't have downgraded you couldn't have downgraded they couldn't have downgraded	I couldn't have been downgrading you couldn't have been downgrading she couldn't have been downgrading we couldn't have been downgrading you couldn't have been downgrading they couldn't have been downgrading

Forma interrogativa

Forma simple	Forma com V-ing
could I downgrade? could you downgrade? could she downgrade? could we downgrade? could you downgrade? could they downgrade?	could I be downgrading? could you be downgrading? could she be downgrading? could we be downgrading? could you be downgrading? could they be downgrading?
Perfeito	Perfeito com V-ing
could I have downgraded? could you have downgraded? could she have downgraded? could we have downgraded? could you have downgraded? could they have downgraded?	could I have been downgrading? could you have been downgrading? could she have been downgrading? could we have been downgrading? could you have been downgrading? could they have been downgrading?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I downgrade? couldn't you downgrade? couldn't she downgrade? couldn't we downgrade? couldn't you downgrade? couldn't they downgrade?	couldn't I be downgrading? couldn't you be downgrading? couldn't she be downgrading? couldn't we be downgrading? couldn't you be downgrading? couldn't they be downgrading?
Perfeito	Perfeito com V-ing
couldn't I have downgraded? couldn't you have downgraded? couldn't she have downgraded? couldn't we have downgraded? couldn't you have downgraded? couldn't they have downgraded?	couldn't I have been downgrading? couldn't you have been downgrading? couldn't she have been downgrading? couldn't we have been downgrading? couldn't you have been downgrading? couldn't they have been downgrading?