must succor
Regular verb: succor - succored- succored

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must succor
you must succor
she must succor
we must succor
you must succor
they must succor 	I must be succoring
you must be succoring
she must be succoring
we must be succoring
you must be succoring
they must be succoring	I must have succored
you must have succored
she must have succored
we must have succored
you must have succored
they must have succored	I must have been succoring
you must have been succoring
she must have been succoring
we must have been succoring
you must have been succoring
they must have been succoring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not succor
you must not succor
she must not succor
we must not succor
you must not succor
they must not succor 	I must not be succoring
you must not be succoring
she must not be succoring
we must not be succoring
you must not be succoring
they must not be succoring	I must not have succored
you must not have succored
she must not have succored
we must not have succored
you must not have succored
they must not have succored	I must not have been succoring
you must not have been succoring
she must not have been succoring
we must not have been succoring
you must not have been succoring
they must not have been succoring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I succor?
must you succor?
must she succor?
must we succor?
must you succor?
must they succor? 	must I be succoring?
must you be succoring?
must she be succoring?
must we be succoring?
must you be succoring?
must they be succoring? 	must I have succored?
must you have succored?
must she have succored?
must we have succored?
must you have succored?
must they have succored? 	must I have been succoring?
must you have been succoring?
must she have been succoring?
must we have been succoring?
must you have been succoring?
must they have been succoring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not succor?
must you not succor?
must she not succor?
must we not succor?
must you not succor?
must they not succor? 	must I not be succoring?
must you not be succoring?
must she not be succoring?
must we not be succoring?
must you not be succoring?
must they not be succoring? 	must I not have succored?
must you not have succored?
must she not have succored?
must we not have succored?
must you not have succored?
must they not have succored? 	must I not have been succoring?
must you not have been succoring?
must she not have been succoring?
must we not have been succoring?
must you not have been succoring?
must they not have been succoring?