must sled
Verbo regular: sled - sleded- sleded

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must sled
you must sled
he must sled
we must sled
you must sled
they must sled 	I must be sleding
you must be sleding
he must be sleding
we must be sleding
you must be sleding
they must be sleding	I must have sleded
you must have sleded
he must have sleded
we must have sleded
you must have sleded
they must have sleded	I must have been sleding
you must have been sleding
he must have been sleding
we must have been sleding
you must have been sleding
they must have been sleding	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't sled
you mustn't sled
he mustn't sled
we mustn't sled
you mustn't sled
they mustn't sled 	I mustn't be sleding
you mustn't be sleding
he mustn't be sleding
we mustn't be sleding
you mustn't be sleding
they mustn't be sleding	I mustn't have sleded
you mustn't have sleded
he mustn't have sleded
we mustn't have sleded
you mustn't have sleded
they mustn't have sleded	I mustn't have been sleding
you mustn't have been sleding
he mustn't have been sleding
we mustn't have been sleding
you mustn't have been sleding
they mustn't have been sleding	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I sled?
must you sled?
must he sled?
must we sled?
must you sled?
must they sled? 	must I be sleding?
must you be sleding?
must he be sleding?
must we be sleding?
must you be sleding?
must they be sleding? 	must I have sleded?
must you have sleded?
must he have sleded?
must we have sleded?
must you have sleded?
must they have sleded? 	must I have been sleding?
must you have been sleding?
must he have been sleding?
must we have been sleding?
must you have been sleding?
must they have been sleding? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I sled?
mustn't you sled?
mustn't he sled?
mustn't we sled?
mustn't you sled?
mustn't they sled? 	mustn't I be sleding?
mustn't you be sleding?
mustn't he be sleding?
mustn't we be sleding?
mustn't you be sleding?
mustn't they be sleding? 	mustn't I have sleded?
mustn't you have sleded?
mustn't he have sleded?
mustn't we have sleded?
mustn't you have sleded?
mustn't they have sleded? 	mustn't I have been sleding?
mustn't you have been sleding?
mustn't he have been sleding?
mustn't we have been sleding?
mustn't you have been sleding?
mustn't they have been sleding?