must drum
Verbo regolare: drum - drummed- drummed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must drum
you must drum
he must drum
we must drum
you must drum
they must drum 	I must be drumming
you must be drumming
he must be drumming
we must be drumming
you must be drumming
they must be drumming	I must have drummed
you must have drummed
he must have drummed
we must have drummed
you must have drummed
they must have drummed	I must have been drumming
you must have been drumming
he must have been drumming
we must have been drumming
you must have been drumming
they must have been drumming	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must not drum
you must not drum
he must not drum
we must not drum
you must not drum
they must not drum 	I must not be drumming
you must not be drumming
he must not be drumming
we must not be drumming
you must not be drumming
they must not be drumming	I must not have drummed
you must not have drummed
he must not have drummed
we must not have drummed
you must not have drummed
they must not have drummed	I must not have been drumming
you must not have been drumming
he must not have been drumming
we must not have been drumming
you must not have been drumming
they must not have been drumming	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I drum?
must you drum?
must he drum?
must we drum?
must you drum?
must they drum? 	must I be drumming?
must you be drumming?
must he be drumming?
must we be drumming?
must you be drumming?
must they be drumming? 	must I have drummed?
must you have drummed?
must he have drummed?
must we have drummed?
must you have drummed?
must they have drummed? 	must I have been drumming?
must you have been drumming?
must he have been drumming?
must we have been drumming?
must you have been drumming?
must they have been drumming? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I not drum?
must you not drum?
must he not drum?
must we not drum?
must you not drum?
must they not drum? 	must I not be drumming?
must you not be drumming?
must he not be drumming?
must we not be drumming?
must you not be drumming?
must they not be drumming? 	must I not have drummed?
must you not have drummed?
must he not have drummed?
must we not have drummed?
must you not have drummed?
must they not have drummed? 	must I not have been drumming?
must you not have been drumming?
must he not have been drumming?
must we not have been drumming?
must you not have been drumming?
must they not have been drumming?