I must calumniate you must calumniate she must calumniate we must calumniate you must calumniate they must calumniate
V-ing form
I must be calumniating you must be calumniating she must be calumniating we must be calumniating you must be calumniating they must be calumniating
Perfect
I must have calumniated you must have calumniated she must have calumniated we must have calumniated you must have calumniated they must have calumniated
V-ing perfect
I must have been calumniating you must have been calumniating she must have been calumniating we must have been calumniating you must have been calumniating they must have been calumniating
Negation
Simple form
I must not calumniate you must not calumniate she must not calumniate we must not calumniate you must not calumniate they must not calumniate
V-ing form
I must not be calumniating you must not be calumniating she must not be calumniating we must not be calumniating you must not be calumniating they must not be calumniating
Perfect
I must not have calumniated you must not have calumniated she must not have calumniated we must not have calumniated you must not have calumniated they must not have calumniated
V-ing perfect
I must not have been calumniating you must not have been calumniating she must not have been calumniating we must not have been calumniating you must not have been calumniating they must not have been calumniating
Interrogative form
Simple form
must I calumniate? must you calumniate? must she calumniate? must we calumniate? must you calumniate? must they calumniate?
V-ing form
must I be calumniating? must you be calumniating? must she be calumniating? must we be calumniating? must you be calumniating? must they be calumniating?
Perfect
must I have calumniated? must you have calumniated? must she have calumniated? must we have calumniated? must you have calumniated? must they have calumniated?
V-ing perfect
must I have been calumniating? must you have been calumniating? must she have been calumniating? must we have been calumniating? must you have been calumniating? must they have been calumniating?
Interro-negative form
Simple form
must I not calumniate? must you not calumniate? must she not calumniate? must we not calumniate? must you not calumniate? must they not calumniate?
V-ing form
must I not be calumniating? must you not be calumniating? must she not be calumniating? must we not be calumniating? must you not be calumniating? must they not be calumniating?
Perfect
must I not have calumniated? must you not have calumniated? must she not have calumniated? must we not have calumniated? must you not have calumniated? must they not have calumniated?
V-ing perfect
must I not have been calumniating? must you not have been calumniating? must she not have been calumniating? must we not have been calumniating? must you not have been calumniating? must they not have been calumniating?