can sigh
Verbo regular: sigh - sighed- sighed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can sigh
you can sigh
she can sigh
we can sigh
you can sigh
they can sigh 	I can be sighing
you can be sighing
she can be sighing
we can be sighing
you can be sighing
they can be sighing	I can have sighed
you can have sighed
she 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
she 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 	Perfeito 	Perfeito com V-ing 	
I can't sigh
you can't sigh
she 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
she can't be sighing
we can't be sighing
you can't be sighing
they can't be sighing	I can't have sighed
you can't have sighed
she 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
she 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 	Perfeito 	Perfeito com V-ing 	
can I sigh?
can you sigh?
can she sigh?
can we sigh?
can you sigh?
can they sigh? 	can I be sighing?
can you be sighing?
can she be sighing?
can we be sighing?
can you be sighing?
can they be sighing? 	can I have sighed?
can you have sighed?
can she 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 she 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 	Perfeito 	Perfeito com V-ing 	
can't I sigh?
can't you sigh?
can't she 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 she be sighing?
can't we be sighing?
can't you be sighing?
can't they be sighing? 	can't I have sighed?
can't you have sighed?
can't she 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 she have been sighing?
can't we have been sighing?
can't you have been sighing?
can't they have been sighing?