must subcharter
Regular verb: subcharter - subchartered- subchartered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must subcharter
you must subcharter
he must subcharter
we must subcharter
you must subcharter
they must subcharter 	I must be subchartering
you must be subchartering
he must be subchartering
we must be subchartering
you must be subchartering
they must be subchartering	I must have subchartered
you must have subchartered
he must have subchartered
we must have subchartered
you must have subchartered
they must have subchartered	I must have been subchartering
you must have been subchartering
he must have been subchartering
we must have been subchartering
you must have been subchartering
they must have been subchartering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not subcharter
you must not subcharter
he must not subcharter
we must not subcharter
you must not subcharter
they must not subcharter 	I must not be subchartering
you must not be subchartering
he must not be subchartering
we must not be subchartering
you must not be subchartering
they must not be subchartering	I must not have subchartered
you must not have subchartered
he must not have subchartered
we must not have subchartered
you must not have subchartered
they must not have subchartered	I must not have been subchartering
you must not have been subchartering
he must not have been subchartering
we must not have been subchartering
you must not have been subchartering
they must not have been subchartering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I subcharter?
must you subcharter?
must he subcharter?
must we subcharter?
must you subcharter?
must they subcharter? 	must I be subchartering?
must you be subchartering?
must he be subchartering?
must we be subchartering?
must you be subchartering?
must they be subchartering? 	must I have subchartered?
must you have subchartered?
must he have subchartered?
must we have subchartered?
must you have subchartered?
must they have subchartered? 	must I have been subchartering?
must you have been subchartering?
must he have been subchartering?
must we have been subchartering?
must you have been subchartering?
must they have been subchartering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not subcharter?
must you not subcharter?
must he not subcharter?
must we not subcharter?
must you not subcharter?
must they not subcharter? 	must I not be subchartering?
must you not be subchartering?
must he not be subchartering?
must we not be subchartering?
must you not be subchartering?
must they not be subchartering? 	must I not have subchartered?
must you not have subchartered?
must he not have subchartered?
must we not have subchartered?
must you not have subchartered?
must they not have subchartered? 	must I not have been subchartering?
must you not have been subchartering?
must he not have been subchartering?
must we not have been subchartering?
must you not have been subchartering?
must they not have been subchartering?