English verb conjugation
MUST STRAFE

Regular verb: strafe - strafed - strafed

Affirmation

Simple form	V-ing form
I must strafe you must strafe she must strafe we must strafe you must strafe they must strafe	I must be strafing you must be strafing she must be strafing we must be strafing you must be strafing they must be strafing
Perfect	V-ing perfect
I must have strafed you must have strafed she must have strafed we must have strafed you must have strafed they must have strafed	I must have been strafing you must have been strafing she must have been strafing we must have been strafing you must have been strafing they must have been strafing

Negation

Simple form	V-ing form
I mustn't strafe you mustn't strafe she mustn't strafe we mustn't strafe you mustn't strafe they mustn't strafe	I mustn't be strafing you mustn't be strafing she mustn't be strafing we mustn't be strafing you mustn't be strafing they mustn't be strafing
Perfect	V-ing perfect
I mustn't have strafed you mustn't have strafed she mustn't have strafed we mustn't have strafed you mustn't have strafed they mustn't have strafed	I mustn't have been strafing you mustn't have been strafing she mustn't have been strafing we mustn't have been strafing you mustn't have been strafing they mustn't have been strafing

Interrogative form

Simple form	V-ing form
must I strafe? must you strafe? must she strafe? must we strafe? must you strafe? must they strafe?	must I be strafing? must you be strafing? must she be strafing? must we be strafing? must you be strafing? must they be strafing?
Perfect	V-ing perfect
must I have strafed? must you have strafed? must she have strafed? must we have strafed? must you have strafed? must they have strafed?	must I have been strafing? must you have been strafing? must she have been strafing? must we have been strafing? must you have been strafing? must they have been strafing?

Interro-negative form

Simple form	V-ing form
mustn't I strafe? mustn't you strafe? mustn't she strafe? mustn't we strafe? mustn't you strafe? mustn't they strafe?	mustn't I be strafing? mustn't you be strafing? mustn't she be strafing? mustn't we be strafing? mustn't you be strafing? mustn't they be strafing?
Perfect	V-ing perfect
mustn't I have strafed? mustn't you have strafed? mustn't she have strafed? mustn't we have strafed? mustn't you have strafed? mustn't they have strafed?	mustn't I have been strafing? mustn't you have been strafing? mustn't she have been strafing? mustn't we have been strafing? mustn't you have been strafing? mustn't they have been strafing?