must place
Verbo regular: place - placed- placed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must place
you must place
he must place
we must place
you must place
they must place 	I must be placing
you must be placing
he must be placing
we must be placing
you must be placing
they must be placing	I must have placed
you must have placed
he must have placed
we must have placed
you must have placed
they must have placed	I must have been placing
you must have been placing
he must have been placing
we must have been placing
you must have been placing
they must have been placing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't place
you mustn't place
he mustn't place
we mustn't place
you mustn't place
they mustn't place 	I mustn't be placing
you mustn't be placing
he mustn't be placing
we mustn't be placing
you mustn't be placing
they mustn't be placing	I mustn't have placed
you mustn't have placed
he mustn't have placed
we mustn't have placed
you mustn't have placed
they mustn't have placed	I mustn't have been placing
you mustn't have been placing
he mustn't have been placing
we mustn't have been placing
you mustn't have been placing
they mustn't have been placing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I place?
must you place?
must he place?
must we place?
must you place?
must they place? 	must I be placing?
must you be placing?
must he be placing?
must we be placing?
must you be placing?
must they be placing? 	must I have placed?
must you have placed?
must he have placed?
must we have placed?
must you have placed?
must they have placed? 	must I have been placing?
must you have been placing?
must he have been placing?
must we have been placing?
must you have been placing?
must they have been placing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I place?
mustn't you place?
mustn't he place?
mustn't we place?
mustn't you place?
mustn't they place? 	mustn't I be placing?
mustn't you be placing?
mustn't he be placing?
mustn't we be placing?
mustn't you be placing?
mustn't they be placing? 	mustn't I have placed?
mustn't you have placed?
mustn't he have placed?
mustn't we have placed?
mustn't you have placed?
mustn't they have placed? 	mustn't I have been placing?
mustn't you have been placing?
mustn't he have been placing?
mustn't we have been placing?
mustn't you have been placing?
mustn't they have been placing?