must spray
Regular verb: spray - sprayed- sprayed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must spray
you must spray
she must spray
we must spray
you must spray
they must spray 	I must be spraying
you must be spraying
she must be spraying
we must be spraying
you must be spraying
they must be spraying	I must have sprayed
you must have sprayed
she 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
she must have been spraying
we must have been spraying
you must have been spraying
they must have been spraying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't spray
you mustn't spray
she 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
she 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
she 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
she mustn't have been spraying
we mustn't have been spraying
you mustn't have been spraying
they mustn't have been spraying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I spray?
must you spray?
must she spray?
must we spray?
must you spray?
must they spray? 	must I be spraying?
must you be spraying?
must she be spraying?
must we be spraying?
must you be spraying?
must they be spraying? 	must I have sprayed?
must you have sprayed?
must she 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 she have been spraying?
must we have been spraying?
must you have been spraying?
must they have been spraying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I spray?
mustn't you spray?
mustn't she 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 she 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 she 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 she have been spraying?
mustn't we have been spraying?
mustn't you have been spraying?
mustn't they have been spraying?