must bungle
Regular verb: bungle - bungled- bungled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must bungle
you must bungle
she must bungle
we must bungle
you must bungle
they must bungle 	I must be bungling
you must be bungling
she must be bungling
we must be bungling
you must be bungling
they must be bungling	I must have bungled
you must have bungled
she must have bungled
we must have bungled
you must have bungled
they must have bungled	I must have been bungling
you must have been bungling
she must have been bungling
we must have been bungling
you must have been bungling
they must have been bungling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not bungle
you must not bungle
she must not bungle
we must not bungle
you must not bungle
they must not bungle 	I must not be bungling
you must not be bungling
she must not be bungling
we must not be bungling
you must not be bungling
they must not be bungling	I must not have bungled
you must not have bungled
she must not have bungled
we must not have bungled
you must not have bungled
they must not have bungled	I must not have been bungling
you must not have been bungling
she must not have been bungling
we must not have been bungling
you must not have been bungling
they must not have been bungling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I bungle?
must you bungle?
must she bungle?
must we bungle?
must you bungle?
must they bungle? 	must I be bungling?
must you be bungling?
must she be bungling?
must we be bungling?
must you be bungling?
must they be bungling? 	must I have bungled?
must you have bungled?
must she have bungled?
must we have bungled?
must you have bungled?
must they have bungled? 	must I have been bungling?
must you have been bungling?
must she have been bungling?
must we have been bungling?
must you have been bungling?
must they have been bungling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not bungle?
must you not bungle?
must she not bungle?
must we not bungle?
must you not bungle?
must they not bungle? 	must I not be bungling?
must you not be bungling?
must she not be bungling?
must we not be bungling?
must you not be bungling?
must they not be bungling? 	must I not have bungled?
must you not have bungled?
must she not have bungled?
must we not have bungled?
must you not have bungled?
must they not have bungled? 	must I not have been bungling?
must you not have been bungling?
must she not have been bungling?
must we not have been bungling?
must you not have been bungling?
must they not have been bungling?