I can writhe you can writhe he can writhe we can writhe you can writhe they can writhe
Forma con V-ing
I can be writhing you can be writhing he can be writhing we can be writhing you can be writhing they can be writhing
Perfecto
I can have writhed you can have writhed he can have writhed we can have writhed you can have writhed they can have writhed
Perfecto con V-ing
I can have been writhing you can have been writhing he can have been writhing we can have been writhing you can have been writhing they can have been writhing
Negación
Forma simple
I can't writhe you can't writhe he can't writhe we can't writhe you can't writhe they can't writhe
Forma con V-ing
I can't be writhing you can't be writhing he can't be writhing we can't be writhing you can't be writhing they can't be writhing
Perfecto
I can't have writhed you can't have writhed he can't have writhed we can't have writhed you can't have writhed they can't have writhed
Perfecto con V-ing
I can't have been writhing you can't have been writhing he can't have been writhing we can't have been writhing you can't have been writhing they can't have been writhing
Forma interrogativa
Forma simple
can I writhe? can you writhe? can he writhe? can we writhe? can you writhe? can they writhe?
Forma con V-ing
can I be writhing? can you be writhing? can he be writhing? can we be writhing? can you be writhing? can they be writhing?
Perfecto
can I have writhed? can you have writhed? can he have writhed? can we have writhed? can you have writhed? can they have writhed?
Perfecto con V-ing
can I have been writhing? can you have been writhing? can he have been writhing? can we have been writhing? can you have been writhing? can they have been writhing?
Forma interro-negativa
Forma simple
can't I writhe? can't you writhe? can't he writhe? can't we writhe? can't you writhe? can't they writhe?
Forma con V-ing
can't I be writhing? can't you be writhing? can't he be writhing? can't we be writhing? can't you be writhing? can't they be writhing?
Perfecto
can't I have writhed? can't you have writhed? can't he have writhed? can't we have writhed? can't you have writhed? can't they have writhed?
Perfecto con V-ing
can't I have been writhing? can't you have been writhing? can't he have been writhing? can't we have been writhing? can't you have been writhing? can't they have been writhing?