Conjugación del verbo inglés
COULD ACHE

Verbo regular: ache - ached - ached

Afirmación

Forma simple	Forma con V-ing
I could ache you could ache she could ache we could ache you could ache they could ache	I could be aching you could be aching she could be aching we could be aching you could be aching they could be aching
Perfecto	Perfecto con V-ing
I could have ached you could have ached she could have ached we could have ached you could have ached they could have ached	I could have been aching you could have been aching she could have been aching we could have been aching you could have been aching they could have been aching

Negación

Forma simple	Forma con V-ing
I couldn't ache you couldn't ache she couldn't ache we couldn't ache you couldn't ache they couldn't ache	I couldn't be aching you couldn't be aching she couldn't be aching we couldn't be aching you couldn't be aching they couldn't be aching
Perfecto	Perfecto con V-ing
I couldn't have ached you couldn't have ached she couldn't have ached we couldn't have ached you couldn't have ached they couldn't have ached	I couldn't have been aching you couldn't have been aching she couldn't have been aching we couldn't have been aching you couldn't have been aching they couldn't have been aching

Forma interrogativa

Forma simple	Forma con V-ing
could I ache? could you ache? could she ache? could we ache? could you ache? could they ache?	could I be aching? could you be aching? could she be aching? could we be aching? could you be aching? could they be aching?
Perfecto	Perfecto con V-ing
could I have ached? could you have ached? could she have ached? could we have ached? could you have ached? could they have ached?	could I have been aching? could you have been aching? could she have been aching? could we have been aching? could you have been aching? could they have been aching?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I ache? couldn't you ache? couldn't she ache? couldn't we ache? couldn't you ache? couldn't they ache?	couldn't I be aching? couldn't you be aching? couldn't she be aching? couldn't we be aching? couldn't you be aching? couldn't they be aching?
Perfecto	Perfecto con V-ing
couldn't I have ached? couldn't you have ached? couldn't she have ached? couldn't we have ached? couldn't you have ached? couldn't they have ached?	couldn't I have been aching? couldn't you have been aching? couldn't she have been aching? couldn't we have been aching? couldn't you have been aching? couldn't they have been aching?