I must decommission you must decommission she must decommission we must decommission you must decommission they must decommission
V-ing form
I must be decommissioning you must be decommissioning she must be decommissioning we must be decommissioning you must be decommissioning they must be decommissioning
Perfect
I must have decommissioned you must have decommissioned she must have decommissioned we must have decommissioned you must have decommissioned they must have decommissioned
V-ing perfect
I must have been decommissioning you must have been decommissioning she must have been decommissioning we must have been decommissioning you must have been decommissioning they must have been decommissioning
Negation
Simple form
I must not decommission you must not decommission she must not decommission we must not decommission you must not decommission they must not decommission
V-ing form
I must not be decommissioning you must not be decommissioning she must not be decommissioning we must not be decommissioning you must not be decommissioning they must not be decommissioning
Perfect
I must not have decommissioned you must not have decommissioned she must not have decommissioned we must not have decommissioned you must not have decommissioned they must not have decommissioned
V-ing perfect
I must not have been decommissioning you must not have been decommissioning she must not have been decommissioning we must not have been decommissioning you must not have been decommissioning they must not have been decommissioning
Interrogative form
Simple form
must I decommission? must you decommission? must she decommission? must we decommission? must you decommission? must they decommission?
V-ing form
must I be decommissioning? must you be decommissioning? must she be decommissioning? must we be decommissioning? must you be decommissioning? must they be decommissioning?
Perfect
must I have decommissioned? must you have decommissioned? must she have decommissioned? must we have decommissioned? must you have decommissioned? must they have decommissioned?
V-ing perfect
must I have been decommissioning? must you have been decommissioning? must she have been decommissioning? must we have been decommissioning? must you have been decommissioning? must they have been decommissioning?
Interro-negative form
Simple form
must I not decommission? must you not decommission? must she not decommission? must we not decommission? must you not decommission? must they not decommission?
V-ing form
must I not be decommissioning? must you not be decommissioning? must she not be decommissioning? must we not be decommissioning? must you not be decommissioning? must they not be decommissioning?
Perfect
must I not have decommissioned? must you not have decommissioned? must she not have decommissioned? must we not have decommissioned? must you not have decommissioned? must they not have decommissioned?
V-ing perfect
must I not have been decommissioning? must you not have been decommissioning? must she not have been decommissioning? must we not have been decommissioning? must you not have been decommissioning? must they not have been decommissioning?