must retool
Regular verb: retool - retooled- retooled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must retool
you must retool
she must retool
we must retool
you must retool
they must retool 	I must be retooling
you must be retooling
she must be retooling
we must be retooling
you must be retooling
they must be retooling	I must have retooled
you must have retooled
she must have retooled
we must have retooled
you must have retooled
they must have retooled	I must have been retooling
you must have been retooling
she must have been retooling
we must have been retooling
you must have been retooling
they must have been retooling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't retool
you mustn't retool
she mustn't retool
we mustn't retool
you mustn't retool
they mustn't retool 	I mustn't be retooling
you mustn't be retooling
she mustn't be retooling
we mustn't be retooling
you mustn't be retooling
they mustn't be retooling	I mustn't have retooled
you mustn't have retooled
she mustn't have retooled
we mustn't have retooled
you mustn't have retooled
they mustn't have retooled	I mustn't have been retooling
you mustn't have been retooling
she mustn't have been retooling
we mustn't have been retooling
you mustn't have been retooling
they mustn't have been retooling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I retool?
must you retool?
must she retool?
must we retool?
must you retool?
must they retool? 	must I be retooling?
must you be retooling?
must she be retooling?
must we be retooling?
must you be retooling?
must they be retooling? 	must I have retooled?
must you have retooled?
must she have retooled?
must we have retooled?
must you have retooled?
must they have retooled? 	must I have been retooling?
must you have been retooling?
must she have been retooling?
must we have been retooling?
must you have been retooling?
must they have been retooling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I retool?
mustn't you retool?
mustn't she retool?
mustn't we retool?
mustn't you retool?
mustn't they retool? 	mustn't I be retooling?
mustn't you be retooling?
mustn't she be retooling?
mustn't we be retooling?
mustn't you be retooling?
mustn't they be retooling? 	mustn't I have retooled?
mustn't you have retooled?
mustn't she have retooled?
mustn't we have retooled?
mustn't you have retooled?
mustn't they have retooled? 	mustn't I have been retooling?
mustn't you have been retooling?
mustn't she have been retooling?
mustn't we have been retooling?
mustn't you have been retooling?
mustn't they have been retooling?