English verb conjugation
MUST CALENDER

Regular verb: calender - calendered - calendered

Affirmation

Simple form	V-ing form
I must calender you must calender she must calender we must calender you must calender they must calender	I must be calendering you must be calendering she must be calendering we must be calendering you must be calendering they must be calendering
Perfect	V-ing perfect
I must have calendered you must have calendered she must have calendered we must have calendered you must have calendered they must have calendered	I must have been calendering you must have been calendering she must have been calendering we must have been calendering you must have been calendering they must have been calendering

Negation

Simple form	V-ing form
I must not calender you must not calender she must not calender we must not calender you must not calender they must not calender	I must not be calendering you must not be calendering she must not be calendering we must not be calendering you must not be calendering they must not be calendering
Perfect	V-ing perfect
I must not have calendered you must not have calendered she must not have calendered we must not have calendered you must not have calendered they must not have calendered	I must not have been calendering you must not have been calendering she must not have been calendering we must not have been calendering you must not have been calendering they must not have been calendering

Interrogative form

Simple form	V-ing form
must I calender? must you calender? must she calender? must we calender? must you calender? must they calender?	must I be calendering? must you be calendering? must she be calendering? must we be calendering? must you be calendering? must they be calendering?
Perfect	V-ing perfect
must I have calendered? must you have calendered? must she have calendered? must we have calendered? must you have calendered? must they have calendered?	must I have been calendering? must you have been calendering? must she have been calendering? must we have been calendering? must you have been calendering? must they have been calendering?

Interro-negative form

Simple form	V-ing form
must I not calender? must you not calender? must she not calender? must we not calender? must you not calender? must they not calender?	must I not be calendering? must you not be calendering? must she not be calendering? must we not be calendering? must you not be calendering? must they not be calendering?
Perfect	V-ing perfect
must I not have calendered? must you not have calendered? must she not have calendered? must we not have calendered? must you not have calendered? must they not have calendered?	must I not have been calendering? must you not have been calendering? must she not have been calendering? must we not have been calendering? must you not have been calendering? must they not have been calendering?