can sigh
Verbo regular: sigh - sighed- sighed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con 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	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	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con 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	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 con V-ing 	Perfecto 	Perfecto con 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? 	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-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con 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? 	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?