must cable
Regular verb: cable - cabled- cabled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must cable
you must cable
he must cable
we must cable
you must cable
they must cable 	I must be cabling
you must be cabling
he must be cabling
we must be cabling
you must be cabling
they must be cabling	I must have cabled
you must have cabled
he must have cabled
we must have cabled
you must have cabled
they must have cabled	I must have been cabling
you must have been cabling
he must have been cabling
we must have been cabling
you must have been cabling
they must have been cabling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not cable
you must not cable
he must not cable
we must not cable
you must not cable
they must not cable 	I must not be cabling
you must not be cabling
he must not be cabling
we must not be cabling
you must not be cabling
they must not be cabling	I must not have cabled
you must not have cabled
he must not have cabled
we must not have cabled
you must not have cabled
they must not have cabled	I must not have been cabling
you must not have been cabling
he must not have been cabling
we must not have been cabling
you must not have been cabling
they must not have been cabling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I cable?
must you cable?
must he cable?
must we cable?
must you cable?
must they cable? 	must I be cabling?
must you be cabling?
must he be cabling?
must we be cabling?
must you be cabling?
must they be cabling? 	must I have cabled?
must you have cabled?
must he have cabled?
must we have cabled?
must you have cabled?
must they have cabled? 	must I have been cabling?
must you have been cabling?
must he have been cabling?
must we have been cabling?
must you have been cabling?
must they have been cabling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not cable?
must you not cable?
must he not cable?
must we not cable?
must you not cable?
must they not cable? 	must I not be cabling?
must you not be cabling?
must he not be cabling?
must we not be cabling?
must you not be cabling?
must they not be cabling? 	must I not have cabled?
must you not have cabled?
must he not have cabled?
must we not have cabled?
must you not have cabled?
must they not have cabled? 	must I not have been cabling?
must you not have been cabling?
must he not have been cabling?
must we not have been cabling?
must you not have been cabling?
must they not have been cabling?