must boom
Verbo regular: boom - boomed- boomed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must boom
you must boom
he must boom
we must boom
you must boom
they must boom 	I must be booming
you must be booming
he must be booming
we must be booming
you must be booming
they must be booming	I must have boomed
you must have boomed
he must have boomed
we must have boomed
you must have boomed
they must have boomed	I must have been booming
you must have been booming
he must have been booming
we must have been booming
you must have been booming
they must have been booming	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not boom
you must not boom
he must not boom
we must not boom
you must not boom
they must not boom 	I must not be booming
you must not be booming
he must not be booming
we must not be booming
you must not be booming
they must not be booming	I must not have boomed
you must not have boomed
he must not have boomed
we must not have boomed
you must not have boomed
they must not have boomed	I must not have been booming
you must not have been booming
he must not have been booming
we must not have been booming
you must not have been booming
they must not have been booming	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I boom?
must you boom?
must he boom?
must we boom?
must you boom?
must they boom? 	must I be booming?
must you be booming?
must he be booming?
must we be booming?
must you be booming?
must they be booming? 	must I have boomed?
must you have boomed?
must he have boomed?
must we have boomed?
must you have boomed?
must they have boomed? 	must I have been booming?
must you have been booming?
must he have been booming?
must we have been booming?
must you have been booming?
must they have been booming? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not boom?
must you not boom?
must he not boom?
must we not boom?
must you not boom?
must they not boom? 	must I not be booming?
must you not be booming?
must he not be booming?
must we not be booming?
must you not be booming?
must they not be booming? 	must I not have boomed?
must you not have boomed?
must he not have boomed?
must we not have boomed?
must you not have boomed?
must they not have boomed? 	must I not have been booming?
must you not have been booming?
must he not have been booming?
must we not have been booming?
must you not have been booming?
must they not have been booming?