must abdicate
Regular verb: abdicate - abdicated- abdicated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must abdicate
you must abdicate
she must abdicate
we must abdicate
you must abdicate
they must abdicate 	I must be abdicating
you must be abdicating
she must be abdicating
we must be abdicating
you must be abdicating
they must be abdicating	I must have abdicated
you must have abdicated
she must have abdicated
we must have abdicated
you must have abdicated
they must have abdicated	I must have been abdicating
you must have been abdicating
she must have been abdicating
we must have been abdicating
you must have been abdicating
they must have been abdicating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not abdicate
you must not abdicate
she must not abdicate
we must not abdicate
you must not abdicate
they must not abdicate 	I must not be abdicating
you must not be abdicating
she must not be abdicating
we must not be abdicating
you must not be abdicating
they must not be abdicating	I must not have abdicated
you must not have abdicated
she must not have abdicated
we must not have abdicated
you must not have abdicated
they must not have abdicated	I must not have been abdicating
you must not have been abdicating
she must not have been abdicating
we must not have been abdicating
you must not have been abdicating
they must not have been abdicating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I abdicate?
must you abdicate?
must she abdicate?
must we abdicate?
must you abdicate?
must they abdicate? 	must I be abdicating?
must you be abdicating?
must she be abdicating?
must we be abdicating?
must you be abdicating?
must they be abdicating? 	must I have abdicated?
must you have abdicated?
must she have abdicated?
must we have abdicated?
must you have abdicated?
must they have abdicated? 	must I have been abdicating?
must you have been abdicating?
must she have been abdicating?
must we have been abdicating?
must you have been abdicating?
must they have been abdicating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not abdicate?
must you not abdicate?
must she not abdicate?
must we not abdicate?
must you not abdicate?
must they not abdicate? 	must I not be abdicating?
must you not be abdicating?
must she not be abdicating?
must we not be abdicating?
must you not be abdicating?
must they not be abdicating? 	must I not have abdicated?
must you not have abdicated?
must she not have abdicated?
must we not have abdicated?
must you not have abdicated?
must they not have abdicated? 	must I not have been abdicating?
must you not have been abdicating?
must she not have been abdicating?
must we not have been abdicating?
must you not have been abdicating?
must they not have been abdicating?