English verb conjugation
MUST STRAIGHT-ARM

Regular verb: straight-arm - straight-armed - straight-armed

Affirmation

Simple form	V-ing form
I must straight-arm you must straight-arm he must straight-arm we must straight-arm you must straight-arm they must straight-arm	I must be straight-arming you must be straight-arming he must be straight-arming we must be straight-arming you must be straight-arming they must be straight-arming
Perfect	V-ing perfect
I must have straight-armed you must have straight-armed he must have straight-armed we must have straight-armed you must have straight-armed they must have straight-armed	I must have been straight-arming you must have been straight-arming he must have been straight-arming we must have been straight-arming you must have been straight-arming they must have been straight-arming

Negation

Simple form	V-ing form
I mustn't straight-arm you mustn't straight-arm he mustn't straight-arm we mustn't straight-arm you mustn't straight-arm they mustn't straight-arm	I mustn't be straight-arming you mustn't be straight-arming he mustn't be straight-arming we mustn't be straight-arming you mustn't be straight-arming they mustn't be straight-arming
Perfect	V-ing perfect
I mustn't have straight-armed you mustn't have straight-armed he mustn't have straight-armed we mustn't have straight-armed you mustn't have straight-armed they mustn't have straight-armed	I mustn't have been straight-arming you mustn't have been straight-arming he mustn't have been straight-arming we mustn't have been straight-arming you mustn't have been straight-arming they mustn't have been straight-arming

Interrogative form

Simple form	V-ing form
must I straight-arm? must you straight-arm? must he straight-arm? must we straight-arm? must you straight-arm? must they straight-arm?	must I be straight-arming? must you be straight-arming? must he be straight-arming? must we be straight-arming? must you be straight-arming? must they be straight-arming?
Perfect	V-ing perfect
must I have straight-armed? must you have straight-armed? must he have straight-armed? must we have straight-armed? must you have straight-armed? must they have straight-armed?	must I have been straight-arming? must you have been straight-arming? must he have been straight-arming? must we have been straight-arming? must you have been straight-arming? must they have been straight-arming?

Interro-negative form

Simple form	V-ing form
mustn't I straight-arm? mustn't you straight-arm? mustn't he straight-arm? mustn't we straight-arm? mustn't you straight-arm? mustn't they straight-arm?	mustn't I be straight-arming? mustn't you be straight-arming? mustn't he be straight-arming? mustn't we be straight-arming? mustn't you be straight-arming? mustn't they be straight-arming?
Perfect	V-ing perfect
mustn't I have straight-armed? mustn't you have straight-armed? mustn't he have straight-armed? mustn't we have straight-armed? mustn't you have straight-armed? mustn't they have straight-armed?	mustn't I have been straight-arming? mustn't you have been straight-arming? mustn't he have been straight-arming? mustn't we have been straight-arming? mustn't you have been straight-arming? mustn't they have been straight-arming?