I must meter you must meter she must meter we must meter you must meter they must meter
V-ing form
I must be metering you must be metering she must be metering we must be metering you must be metering they must be metering
Perfect
I must have metered you must have metered she must have metered we must have metered you must have metered they must have metered
V-ing perfect
I must have been metering you must have been metering she must have been metering we must have been metering you must have been metering they must have been metering
Negation
Simple form
I must not meter you must not meter she must not meter we must not meter you must not meter they must not meter
V-ing form
I must not be metering you must not be metering she must not be metering we must not be metering you must not be metering they must not be metering
Perfect
I must not have metered you must not have metered she must not have metered we must not have metered you must not have metered they must not have metered
V-ing perfect
I must not have been metering you must not have been metering she must not have been metering we must not have been metering you must not have been metering they must not have been metering
Interrogative form
Simple form
must I meter? must you meter? must she meter? must we meter? must you meter? must they meter?
V-ing form
must I be metering? must you be metering? must she be metering? must we be metering? must you be metering? must they be metering?
Perfect
must I have metered? must you have metered? must she have metered? must we have metered? must you have metered? must they have metered?
V-ing perfect
must I have been metering? must you have been metering? must she have been metering? must we have been metering? must you have been metering? must they have been metering?
Interro-negative form
Simple form
must I not meter? must you not meter? must she not meter? must we not meter? must you not meter? must they not meter?
V-ing form
must I not be metering? must you not be metering? must she not be metering? must we not be metering? must you not be metering? must they not be metering?
Perfect
must I not have metered? must you not have metered? must she not have metered? must we not have metered? must you not have metered? must they not have metered?
V-ing perfect
must I not have been metering? must you not have been metering? must she not have been metering? must we not have been metering? must you not have been metering? must they not have been metering?