must repair
Regular verb: repair - repaired- repaired

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must repair
you must repair
he must repair
we must repair
you must repair
they must repair 	I must be repairing
you must be repairing
he must be repairing
we must be repairing
you must be repairing
they must be repairing	I must have repaired
you must have repaired
he must have repaired
we must have repaired
you must have repaired
they must have repaired	I must have been repairing
you must have been repairing
he must have been repairing
we must have been repairing
you must have been repairing
they must have been repairing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not repair
you must not repair
he must not repair
we must not repair
you must not repair
they must not repair 	I must not be repairing
you must not be repairing
he must not be repairing
we must not be repairing
you must not be repairing
they must not be repairing	I must not have repaired
you must not have repaired
he must not have repaired
we must not have repaired
you must not have repaired
they must not have repaired	I must not have been repairing
you must not have been repairing
he must not have been repairing
we must not have been repairing
you must not have been repairing
they must not have been repairing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I repair?
must you repair?
must he repair?
must we repair?
must you repair?
must they repair? 	must I be repairing?
must you be repairing?
must he be repairing?
must we be repairing?
must you be repairing?
must they be repairing? 	must I have repaired?
must you have repaired?
must he have repaired?
must we have repaired?
must you have repaired?
must they have repaired? 	must I have been repairing?
must you have been repairing?
must he have been repairing?
must we have been repairing?
must you have been repairing?
must they have been repairing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not repair?
must you not repair?
must he not repair?
must we not repair?
must you not repair?
must they not repair? 	must I not be repairing?
must you not be repairing?
must he not be repairing?
must we not be repairing?
must you not be repairing?
must they not be repairing? 	must I not have repaired?
must you not have repaired?
must he not have repaired?
must we not have repaired?
must you not have repaired?
must they not have repaired? 	must I not have been repairing?
must you not have been repairing?
must he not have been repairing?
must we not have been repairing?
must you not have been repairing?
must they not have been repairing?