I can sigh you can sigh he can sigh we can sigh you can sigh they can sigh
Forma com V-ing
I can be sighing you can be sighing he can be sighing we can be sighing you can be sighing they can be sighing
Perfeito
I can have sighed you can have sighed he can have sighed we can have sighed you can have sighed they can have sighed
Perfeito com V-ing
I can have been sighing you can have been sighing he can have been sighing we can have been sighing you can have been sighing they can have been sighing
Negação
Forma simple
I can't sigh you can't sigh he can't sigh we can't sigh you can't sigh they can't sigh
Forma com V-ing
I can't be sighing you can't be sighing he can't be sighing we can't be sighing you can't be sighing they can't be sighing
Perfeito
I can't have sighed you can't have sighed he can't have sighed we can't have sighed you can't have sighed they can't have sighed
Perfeito com V-ing
I can't have been sighing you can't have been sighing he can't have been sighing we can't have been sighing you can't have been sighing they can't have been sighing
Forma interrogativa
Forma simple
can I sigh? can you sigh? can he sigh? can we sigh? can you sigh? can they sigh?
Forma com V-ing
can I be sighing? can you be sighing? can he be sighing? can we be sighing? can you be sighing? can they be sighing?
Perfeito
can I have sighed? can you have sighed? can he have sighed? can we have sighed? can you have sighed? can they have sighed?
Perfeito com V-ing
can I have been sighing? can you have been sighing? can he have been sighing? can we have been sighing? can you have been sighing? can they have been sighing?
Forma interro-Negação
Forma simple
can't I sigh? can't you sigh? can't he sigh? can't we sigh? can't you sigh? can't they sigh?
Forma com V-ing
can't I be sighing? can't you be sighing? can't he be sighing? can't we be sighing? can't you be sighing? can't they be sighing?
Perfeito
can't I have sighed? can't you have sighed? can't he have sighed? can't we have sighed? can't you have sighed? can't they have sighed?
Perfeito com V-ing
can't I have been sighing? can't you have been sighing? can't he have been sighing? can't we have been sighing? can't you have been sighing? can't they have been sighing?