must jab
Verbo regular: jab - jabbed- jabbed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must jab
you must jab
he must jab
we must jab
you must jab
they must jab 	I must be jabbing
you must be jabbing
he must be jabbing
we must be jabbing
you must be jabbing
they must be jabbing	I must have jabbed
you must have jabbed
he must have jabbed
we must have jabbed
you must have jabbed
they must have jabbed	I must have been jabbing
you must have been jabbing
he must have been jabbing
we must have been jabbing
you must have been jabbing
they must have been jabbing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't jab
you mustn't jab
he mustn't jab
we mustn't jab
you mustn't jab
they mustn't jab 	I mustn't be jabbing
you mustn't be jabbing
he mustn't be jabbing
we mustn't be jabbing
you mustn't be jabbing
they mustn't be jabbing	I mustn't have jabbed
you mustn't have jabbed
he mustn't have jabbed
we mustn't have jabbed
you mustn't have jabbed
they mustn't have jabbed	I mustn't have been jabbing
you mustn't have been jabbing
he mustn't have been jabbing
we mustn't have been jabbing
you mustn't have been jabbing
they mustn't have been jabbing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I jab?
must you jab?
must he jab?
must we jab?
must you jab?
must they jab? 	must I be jabbing?
must you be jabbing?
must he be jabbing?
must we be jabbing?
must you be jabbing?
must they be jabbing? 	must I have jabbed?
must you have jabbed?
must he have jabbed?
must we have jabbed?
must you have jabbed?
must they have jabbed? 	must I have been jabbing?
must you have been jabbing?
must he have been jabbing?
must we have been jabbing?
must you have been jabbing?
must they have been jabbing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I jab?
mustn't you jab?
mustn't he jab?
mustn't we jab?
mustn't you jab?
mustn't they jab? 	mustn't I be jabbing?
mustn't you be jabbing?
mustn't he be jabbing?
mustn't we be jabbing?
mustn't you be jabbing?
mustn't they be jabbing? 	mustn't I have jabbed?
mustn't you have jabbed?
mustn't he have jabbed?
mustn't we have jabbed?
mustn't you have jabbed?
mustn't they have jabbed? 	mustn't I have been jabbing?
mustn't you have been jabbing?
mustn't he have been jabbing?
mustn't we have been jabbing?
mustn't you have been jabbing?
mustn't they have been jabbing?