must drab
Verbo regular: drab - drabed- drabed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must drab
you must drab
she must drab
we must drab
you must drab
they must drab 	I must be drabing
you must be drabing
she must be drabing
we must be drabing
you must be drabing
they must be drabing	I must have drabed
you must have drabed
she must have drabed
we must have drabed
you must have drabed
they must have drabed	I must have been drabing
you must have been drabing
she must have been drabing
we must have been drabing
you must have been drabing
they must have been drabing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not drab
you must not drab
she must not drab
we must not drab
you must not drab
they must not drab 	I must not be drabing
you must not be drabing
she must not be drabing
we must not be drabing
you must not be drabing
they must not be drabing	I must not have drabed
you must not have drabed
she must not have drabed
we must not have drabed
you must not have drabed
they must not have drabed	I must not have been drabing
you must not have been drabing
she must not have been drabing
we must not have been drabing
you must not have been drabing
they must not have been drabing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I drab?
must you drab?
must she drab?
must we drab?
must you drab?
must they drab? 	must I be drabing?
must you be drabing?
must she be drabing?
must we be drabing?
must you be drabing?
must they be drabing? 	must I have drabed?
must you have drabed?
must she have drabed?
must we have drabed?
must you have drabed?
must they have drabed? 	must I have been drabing?
must you have been drabing?
must she have been drabing?
must we have been drabing?
must you have been drabing?
must they have been drabing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not drab?
must you not drab?
must she not drab?
must we not drab?
must you not drab?
must they not drab? 	must I not be drabing?
must you not be drabing?
must she not be drabing?
must we not be drabing?
must you not be drabing?
must they not be drabing? 	must I not have drabed?
must you not have drabed?
must she not have drabed?
must we not have drabed?
must you not have drabed?
must they not have drabed? 	must I not have been drabing?
must you not have been drabing?
must she not have been drabing?
must we not have been drabing?
must you not have been drabing?
must they not have been drabing?