must clone
Regular verb: clone - cloned- cloned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must clone
you must clone
he must clone
we must clone
you must clone
they must clone 	I must be cloning
you must be cloning
he must be cloning
we must be cloning
you must be cloning
they must be cloning	I must have cloned
you must have cloned
he must have cloned
we must have cloned
you must have cloned
they must have cloned	I must have been cloning
you must have been cloning
he must have been cloning
we must have been cloning
you must have been cloning
they must have been cloning	

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

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