Coniugazione del verbo inglese
COULD RETROGRADE

Verbo regolare: retrograde - retrograded - retrograded

Affermazione

Forma semplice	Forma con V-ing
I could retrograde you could retrograde he could retrograde we could retrograde you could retrograde they could retrograde	I could be retrograding you could be retrograding he could be retrograding we could be retrograding you could be retrograding they could be retrograding
Perfetto	Perfetto con V-ing
I could have retrograded you could have retrograded he could have retrograded we could have retrograded you could have retrograded they could have retrograded	I could have been retrograding you could have been retrograding he could have been retrograding we could have been retrograding you could have been retrograding they could have been retrograding

Negazione

Forma semplice	Forma con V-ing
I couldn't retrograde you couldn't retrograde he couldn't retrograde we couldn't retrograde you couldn't retrograde they couldn't retrograde	I couldn't be retrograding you couldn't be retrograding he couldn't be retrograding we couldn't be retrograding you couldn't be retrograding they couldn't be retrograding
Perfetto	Perfetto con V-ing
I couldn't have retrograded you couldn't have retrograded he couldn't have retrograded we couldn't have retrograded you couldn't have retrograded they couldn't have retrograded	I couldn't have been retrograding you couldn't have been retrograding he couldn't have been retrograding we couldn't have been retrograding you couldn't have been retrograding they couldn't have been retrograding

Forma interrogativa

Forma semplice	Forma con V-ing
could I retrograde? could you retrograde? could he retrograde? could we retrograde? could you retrograde? could they retrograde?	could I be retrograding? could you be retrograding? could he be retrograding? could we be retrograding? could you be retrograding? could they be retrograding?
Perfetto	Perfetto con V-ing
could I have retrograded? could you have retrograded? could he have retrograded? could we have retrograded? could you have retrograded? could they have retrograded?	could I have been retrograding? could you have been retrograding? could he have been retrograding? could we have been retrograding? could you have been retrograding? could they have been retrograding?

Forma interro-negativa

Forma semplice	Forma con V-ing
couldn't I retrograde? couldn't you retrograde? couldn't he retrograde? couldn't we retrograde? couldn't you retrograde? couldn't they retrograde?	couldn't I be retrograding? couldn't you be retrograding? couldn't he be retrograding? couldn't we be retrograding? couldn't you be retrograding? couldn't they be retrograding?
Perfetto	Perfetto con V-ing
couldn't I have retrograded? couldn't you have retrograded? couldn't he have retrograded? couldn't we have retrograded? couldn't you have retrograded? couldn't they have retrograded?	couldn't I have been retrograding? couldn't you have been retrograding? couldn't he have been retrograding? couldn't we have been retrograding? couldn't you have been retrograding? couldn't they have been retrograding?