must bib
Verbo regular: bib - bibed- bibed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must bib
you must bib
he must bib
we must bib
you must bib
they must bib 	I must be bibing
you must be bibing
he must be bibing
we must be bibing
you must be bibing
they must be bibing	I must have bibed
you must have bibed
he must have bibed
we must have bibed
you must have bibed
they must have bibed	I must have been bibing
you must have been bibing
he must have been bibing
we must have been bibing
you must have been bibing
they must have been bibing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not bib
you must not bib
he must not bib
we must not bib
you must not bib
they must not bib 	I must not be bibing
you must not be bibing
he must not be bibing
we must not be bibing
you must not be bibing
they must not be bibing	I must not have bibed
you must not have bibed
he must not have bibed
we must not have bibed
you must not have bibed
they must not have bibed	I must not have been bibing
you must not have been bibing
he must not have been bibing
we must not have been bibing
you must not have been bibing
they must not have been bibing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I bib?
must you bib?
must he bib?
must we bib?
must you bib?
must they bib? 	must I be bibing?
must you be bibing?
must he be bibing?
must we be bibing?
must you be bibing?
must they be bibing? 	must I have bibed?
must you have bibed?
must he have bibed?
must we have bibed?
must you have bibed?
must they have bibed? 	must I have been bibing?
must you have been bibing?
must he have been bibing?
must we have been bibing?
must you have been bibing?
must they have been bibing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not bib?
must you not bib?
must he not bib?
must we not bib?
must you not bib?
must they not bib? 	must I not be bibing?
must you not be bibing?
must he not be bibing?
must we not be bibing?
must you not be bibing?
must they not be bibing? 	must I not have bibed?
must you not have bibed?
must he not have bibed?
must we not have bibed?
must you not have bibed?
must they not have bibed? 	must I not have been bibing?
must you not have been bibing?
must he not have been bibing?
must we not have been bibing?
must you not have been bibing?
must they not have been bibing?