Conjugação do verbo inglês
CAN SIGH

Verbo regular: sigh - sighed - sighed

Afirmação

Forma simple	Forma com V-ing
I can sigh you can sigh he can sigh we can sigh you can sigh they can sigh	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	Perfeito com V-ing
I can have sighed you can have sighed he can have sighed we can have sighed you can have sighed they can have sighed	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	Forma com V-ing
I can't sigh you can't sigh he can't sigh we can't sigh you can't sigh they can't sigh	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	Perfeito com V-ing
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	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	Forma com V-ing
can I sigh? can you sigh? can he sigh? can we sigh? can you sigh? can they sigh?	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	Perfeito com V-ing
can I have sighed? can you have sighed? can he have sighed? can we have sighed? can you have sighed? can they have sighed?	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	Forma com V-ing
can't I sigh? can't you sigh? can't he sigh? can't we sigh? can't you sigh? can't they sigh?	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	Perfeito com V-ing
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?	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?