I could paint you could paint he could paint we could paint you could paint they could paint
Forma con V-ing
I could be painting you could be painting he could be painting we could be painting you could be painting they could be painting
Perfecto
I could have painted you could have painted he could have painted we could have painted you could have painted they could have painted
Perfecto con V-ing
I could have been painting you could have been painting he could have been painting we could have been painting you could have been painting they could have been painting
Negación
Forma simple
I couldn't paint you couldn't paint he couldn't paint we couldn't paint you couldn't paint they couldn't paint
Forma con V-ing
I couldn't be painting you couldn't be painting he couldn't be painting we couldn't be painting you couldn't be painting they couldn't be painting
Perfecto
I couldn't have painted you couldn't have painted he couldn't have painted we couldn't have painted you couldn't have painted they couldn't have painted
Perfecto con V-ing
I couldn't have been painting you couldn't have been painting he couldn't have been painting we couldn't have been painting you couldn't have been painting they couldn't have been painting
Forma interrogativa
Forma simple
could I paint? could you paint? could he paint? could we paint? could you paint? could they paint?
Forma con V-ing
could I be painting? could you be painting? could he be painting? could we be painting? could you be painting? could they be painting?
Perfecto
could I have painted? could you have painted? could he have painted? could we have painted? could you have painted? could they have painted?
Perfecto con V-ing
could I have been painting? could you have been painting? could he have been painting? could we have been painting? could you have been painting? could they have been painting?
Forma interro-negativa
Forma simple
couldn't I paint? couldn't you paint? couldn't he paint? couldn't we paint? couldn't you paint? couldn't they paint?
Forma con V-ing
couldn't I be painting? couldn't you be painting? couldn't he be painting? couldn't we be painting? couldn't you be painting? couldn't they be painting?
Perfecto
couldn't I have painted? couldn't you have painted? couldn't he have painted? couldn't we have painted? couldn't you have painted? couldn't they have painted?
Perfecto con V-ing
couldn't I have been painting? couldn't you have been painting? couldn't he have been painting? couldn't we have been painting? couldn't you have been painting? couldn't they have been painting?