must rescue
Regular verb: rescue - rescued- rescued

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must rescue
you must rescue
she must rescue
we must rescue
you must rescue
they must rescue 	I must be rescuing
you must be rescuing
she must be rescuing
we must be rescuing
you must be rescuing
they must be rescuing	I must have rescued
you must have rescued
she must have rescued
we must have rescued
you must have rescued
they must have rescued	I must have been rescuing
you must have been rescuing
she must have been rescuing
we must have been rescuing
you must have been rescuing
they must have been rescuing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't rescue
you mustn't rescue
she mustn't rescue
we mustn't rescue
you mustn't rescue
they mustn't rescue 	I mustn't be rescuing
you mustn't be rescuing
she mustn't be rescuing
we mustn't be rescuing
you mustn't be rescuing
they mustn't be rescuing	I mustn't have rescued
you mustn't have rescued
she mustn't have rescued
we mustn't have rescued
you mustn't have rescued
they mustn't have rescued	I mustn't have been rescuing
you mustn't have been rescuing
she mustn't have been rescuing
we mustn't have been rescuing
you mustn't have been rescuing
they mustn't have been rescuing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I rescue?
must you rescue?
must she rescue?
must we rescue?
must you rescue?
must they rescue? 	must I be rescuing?
must you be rescuing?
must she be rescuing?
must we be rescuing?
must you be rescuing?
must they be rescuing? 	must I have rescued?
must you have rescued?
must she have rescued?
must we have rescued?
must you have rescued?
must they have rescued? 	must I have been rescuing?
must you have been rescuing?
must she have been rescuing?
must we have been rescuing?
must you have been rescuing?
must they have been rescuing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I rescue?
mustn't you rescue?
mustn't she rescue?
mustn't we rescue?
mustn't you rescue?
mustn't they rescue? 	mustn't I be rescuing?
mustn't you be rescuing?
mustn't she be rescuing?
mustn't we be rescuing?
mustn't you be rescuing?
mustn't they be rescuing? 	mustn't I have rescued?
mustn't you have rescued?
mustn't she have rescued?
mustn't we have rescued?
mustn't you have rescued?
mustn't they have rescued? 	mustn't I have been rescuing?
mustn't you have been rescuing?
mustn't she have been rescuing?
mustn't we have been rescuing?
mustn't you have been rescuing?
mustn't they have been rescuing?