must burke
Verbo regular: burke - burked- burked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must burke
you must burke
he must burke
we must burke
you must burke
they must burke 	I must be burking
you must be burking
he must be burking
we must be burking
you must be burking
they must be burking	I must have burked
you must have burked
he must have burked
we must have burked
you must have burked
they must have burked	I must have been burking
you must have been burking
he must have been burking
we must have been burking
you must have been burking
they must have been burking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not burke
you must not burke
he must not burke
we must not burke
you must not burke
they must not burke 	I must not be burking
you must not be burking
he must not be burking
we must not be burking
you must not be burking
they must not be burking	I must not have burked
you must not have burked
he must not have burked
we must not have burked
you must not have burked
they must not have burked	I must not have been burking
you must not have been burking
he must not have been burking
we must not have been burking
you must not have been burking
they must not have been burking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I burke?
must you burke?
must he burke?
must we burke?
must you burke?
must they burke? 	must I be burking?
must you be burking?
must he be burking?
must we be burking?
must you be burking?
must they be burking? 	must I have burked?
must you have burked?
must he have burked?
must we have burked?
must you have burked?
must they have burked? 	must I have been burking?
must you have been burking?
must he have been burking?
must we have been burking?
must you have been burking?
must they have been burking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not burke?
must you not burke?
must he not burke?
must we not burke?
must you not burke?
must they not burke? 	must I not be burking?
must you not be burking?
must he not be burking?
must we not be burking?
must you not be burking?
must they not be burking? 	must I not have burked?
must you not have burked?
must he not have burked?
must we not have burked?
must you not have burked?
must they not have burked? 	must I not have been burking?
must you not have been burking?
must he not have been burking?
must we not have been burking?
must you not have been burking?
must they not have been burking?