English verb conjugation
MUST WINDMILL

Regular verb: windmill - windmilled - windmilled

Affirmation

Simple form	V-ing form
I must windmill you must windmill she must windmill we must windmill you must windmill they must windmill	I must be windmilling you must be windmilling she must be windmilling we must be windmilling you must be windmilling they must be windmilling
Perfect	V-ing perfect
I must have windmilled you must have windmilled she must have windmilled we must have windmilled you must have windmilled they must have windmilled	I must have been windmilling you must have been windmilling she must have been windmilling we must have been windmilling you must have been windmilling they must have been windmilling

Negation

Simple form	V-ing form
I must not windmill you must not windmill she must not windmill we must not windmill you must not windmill they must not windmill	I must not be windmilling you must not be windmilling she must not be windmilling we must not be windmilling you must not be windmilling they must not be windmilling
Perfect	V-ing perfect
I must not have windmilled you must not have windmilled she must not have windmilled we must not have windmilled you must not have windmilled they must not have windmilled	I must not have been windmilling you must not have been windmilling she must not have been windmilling we must not have been windmilling you must not have been windmilling they must not have been windmilling

Interrogative form

Simple form	V-ing form
must I windmill? must you windmill? must she windmill? must we windmill? must you windmill? must they windmill?	must I be windmilling? must you be windmilling? must she be windmilling? must we be windmilling? must you be windmilling? must they be windmilling?
Perfect	V-ing perfect
must I have windmilled? must you have windmilled? must she have windmilled? must we have windmilled? must you have windmilled? must they have windmilled?	must I have been windmilling? must you have been windmilling? must she have been windmilling? must we have been windmilling? must you have been windmilling? must they have been windmilling?

Interro-negative form

Simple form	V-ing form
must I not windmill? must you not windmill? must she not windmill? must we not windmill? must you not windmill? must they not windmill?	must I not be windmilling? must you not be windmilling? must she not be windmilling? must we not be windmilling? must you not be windmilling? must they not be windmilling?
Perfect	V-ing perfect
must I not have windmilled? must you not have windmilled? must she not have windmilled? must we not have windmilled? must you not have windmilled? must they not have windmilled?	must I not have been windmilling? must you not have been windmilling? must she not have been windmilling? must we not have been windmilling? must you not have been windmilling? must they not have been windmilling?