must fuzz
Regular verb: fuzz - fuzzed- fuzzed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must fuzz
you must fuzz
she must fuzz
we must fuzz
you must fuzz
they must fuzz 	I must be fuzzing
you must be fuzzing
she must be fuzzing
we must be fuzzing
you must be fuzzing
they must be fuzzing	I must have fuzzed
you must have fuzzed
she must have fuzzed
we must have fuzzed
you must have fuzzed
they must have fuzzed	I must have been fuzzing
you must have been fuzzing
she must have been fuzzing
we must have been fuzzing
you must have been fuzzing
they must have been fuzzing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not fuzz
you must not fuzz
she must not fuzz
we must not fuzz
you must not fuzz
they must not fuzz 	I must not be fuzzing
you must not be fuzzing
she must not be fuzzing
we must not be fuzzing
you must not be fuzzing
they must not be fuzzing	I must not have fuzzed
you must not have fuzzed
she must not have fuzzed
we must not have fuzzed
you must not have fuzzed
they must not have fuzzed	I must not have been fuzzing
you must not have been fuzzing
she must not have been fuzzing
we must not have been fuzzing
you must not have been fuzzing
they must not have been fuzzing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I fuzz?
must you fuzz?
must she fuzz?
must we fuzz?
must you fuzz?
must they fuzz? 	must I be fuzzing?
must you be fuzzing?
must she be fuzzing?
must we be fuzzing?
must you be fuzzing?
must they be fuzzing? 	must I have fuzzed?
must you have fuzzed?
must she have fuzzed?
must we have fuzzed?
must you have fuzzed?
must they have fuzzed? 	must I have been fuzzing?
must you have been fuzzing?
must she have been fuzzing?
must we have been fuzzing?
must you have been fuzzing?
must they have been fuzzing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not fuzz?
must you not fuzz?
must she not fuzz?
must we not fuzz?
must you not fuzz?
must they not fuzz? 	must I not be fuzzing?
must you not be fuzzing?
must she not be fuzzing?
must we not be fuzzing?
must you not be fuzzing?
must they not be fuzzing? 	must I not have fuzzed?
must you not have fuzzed?
must she not have fuzzed?
must we not have fuzzed?
must you not have fuzzed?
must they not have fuzzed? 	must I not have been fuzzing?
must you not have been fuzzing?
must she not have been fuzzing?
must we not have been fuzzing?
must you not have been fuzzing?
must they not have been fuzzing?