I must clone you must clone she must clone we must clone you must clone they must clone
V-ing form
I must be cloning you must be cloning she must be cloning we must be cloning you must be cloning they must be cloning
Perfect
I must have cloned you must have cloned she must have cloned we must have cloned you must have cloned they must have cloned
V-ing perfect
I must have been cloning you must have been cloning she must have been cloning we must have been cloning you must have been cloning they must have been cloning
Negation
Simple form
I must not clone you must not clone she must not clone we must not clone you must not clone they must not clone
V-ing form
I must not be cloning you must not be cloning she must not be cloning we must not be cloning you must not be cloning they must not be cloning
Perfect
I must not have cloned you must not have cloned she must not have cloned we must not have cloned you must not have cloned they must not have cloned
V-ing perfect
I must not have been cloning you must not have been cloning she must not have been cloning we must not have been cloning you must not have been cloning they must not have been cloning
Interrogative form
Simple form
must I clone? must you clone? must she clone? must we clone? must you clone? must they clone?
V-ing form
must I be cloning? must you be cloning? must she be cloning? must we be cloning? must you be cloning? must they be cloning?
Perfect
must I have cloned? must you have cloned? must she have cloned? must we have cloned? must you have cloned? must they have cloned?
V-ing perfect
must I have been cloning? must you have been cloning? must she have been cloning? must we have been cloning? must you have been cloning? must they have been cloning?
Interro-negative form
Simple form
must I not clone? must you not clone? must she not clone? must we not clone? must you not clone? must they not clone?
V-ing form
must I not be cloning? must you not be cloning? must she not be cloning? must we not be cloning? must you not be cloning? must they not be cloning?
Perfect
must I not have cloned? must you not have cloned? must she not have cloned? must we not have cloned? must you not have cloned? must they not have cloned?
V-ing perfect
must I not have been cloning? must you not have been cloning? must she not have been cloning? must we not have been cloning? must you not have been cloning? must they not have been cloning?