must spray
Verbo regular: spray - sprayed- sprayed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must spray
you must spray
he must spray
we must spray
you must spray
they must spray 	I must be spraying
you must be spraying
he must be spraying
we must be spraying
you must be spraying
they must be spraying	I must have sprayed
you must have sprayed
he must have sprayed
we must have sprayed
you must have sprayed
they must have sprayed	I must have been spraying
you must have been spraying
he must have been spraying
we must have been spraying
you must have been spraying
they must have been spraying	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't spray
you mustn't spray
he mustn't spray
we mustn't spray
you mustn't spray
they mustn't spray 	I mustn't be spraying
you mustn't be spraying
he mustn't be spraying
we mustn't be spraying
you mustn't be spraying
they mustn't be spraying	I mustn't have sprayed
you mustn't have sprayed
he mustn't have sprayed
we mustn't have sprayed
you mustn't have sprayed
they mustn't have sprayed	I mustn't have been spraying
you mustn't have been spraying
he mustn't have been spraying
we mustn't have been spraying
you mustn't have been spraying
they mustn't have been spraying	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I spray?
must you spray?
must he spray?
must we spray?
must you spray?
must they spray? 	must I be spraying?
must you be spraying?
must he be spraying?
must we be spraying?
must you be spraying?
must they be spraying? 	must I have sprayed?
must you have sprayed?
must he have sprayed?
must we have sprayed?
must you have sprayed?
must they have sprayed? 	must I have been spraying?
must you have been spraying?
must he have been spraying?
must we have been spraying?
must you have been spraying?
must they have been spraying? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I spray?
mustn't you spray?
mustn't he spray?
mustn't we spray?
mustn't you spray?
mustn't they spray? 	mustn't I be spraying?
mustn't you be spraying?
mustn't he be spraying?
mustn't we be spraying?
mustn't you be spraying?
mustn't they be spraying? 	mustn't I have sprayed?
mustn't you have sprayed?
mustn't he have sprayed?
mustn't we have sprayed?
mustn't you have sprayed?
mustn't they have sprayed? 	mustn't I have been spraying?
mustn't you have been spraying?
mustn't he have been spraying?
mustn't we have been spraying?
mustn't you have been spraying?
mustn't they have been spraying?