must boom
Verbo regular: boom - boomed- boomed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must boom
you must boom
she must boom
we must boom
you must boom
they must boom 	I must be booming
you must be booming
she must be booming
we must be booming
you must be booming
they must be booming	I must have boomed
you must have boomed
she 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
she must have been booming
we must have been booming
you must have been booming
they must have been booming	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not boom
you must not boom
she 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
she 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
she 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
she 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 com V-ing 	Perfeito 	Perfeito com V-ing 	
must I boom?
must you boom?
must she boom?
must we boom?
must you boom?
must they boom? 	must I be booming?
must you be booming?
must she be booming?
must we be booming?
must you be booming?
must they be booming? 	must I have boomed?
must you have boomed?
must she 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 she have been booming?
must we have been booming?
must you have been booming?
must they have been booming? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not boom?
must you not boom?
must she 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 she 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 she 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 she not have been booming?
must we not have been booming?
must you not have been booming?
must they not have been booming?