I must decimate you must decimate he must decimate we must decimate you must decimate they must decimate
V-ing form
I must be decimating you must be decimating he must be decimating we must be decimating you must be decimating they must be decimating
Perfect
I must have decimated you must have decimated he must have decimated we must have decimated you must have decimated they must have decimated
V-ing perfect
I must have been decimating you must have been decimating he must have been decimating we must have been decimating you must have been decimating they must have been decimating
Negation
Simple form
I must not decimate you must not decimate he must not decimate we must not decimate you must not decimate they must not decimate
V-ing form
I must not be decimating you must not be decimating he must not be decimating we must not be decimating you must not be decimating they must not be decimating
Perfect
I must not have decimated you must not have decimated he must not have decimated we must not have decimated you must not have decimated they must not have decimated
V-ing perfect
I must not have been decimating you must not have been decimating he must not have been decimating we must not have been decimating you must not have been decimating they must not have been decimating
Interrogative form
Simple form
must I decimate? must you decimate? must he decimate? must we decimate? must you decimate? must they decimate?
V-ing form
must I be decimating? must you be decimating? must he be decimating? must we be decimating? must you be decimating? must they be decimating?
Perfect
must I have decimated? must you have decimated? must he have decimated? must we have decimated? must you have decimated? must they have decimated?
V-ing perfect
must I have been decimating? must you have been decimating? must he have been decimating? must we have been decimating? must you have been decimating? must they have been decimating?
Interro-negative form
Simple form
must I not decimate? must you not decimate? must he not decimate? must we not decimate? must you not decimate? must they not decimate?
V-ing form
must I not be decimating? must you not be decimating? must he not be decimating? must we not be decimating? must you not be decimating? must they not be decimating?
Perfect
must I not have decimated? must you not have decimated? must he not have decimated? must we not have decimated? must you not have decimated? must they not have decimated?
V-ing perfect
must I not have been decimating? must you not have been decimating? must he not have been decimating? must we not have been decimating? must you not have been decimating? must they not have been decimating?