must stab
Verbo regular: stab - stabbed- stabbed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must stab
you must stab
he must stab
we must stab
you must stab
they must stab 	I must be stabbing
you must be stabbing
he must be stabbing
we must be stabbing
you must be stabbing
they must be stabbing	I must have stabbed
you must have stabbed
he must have stabbed
we must have stabbed
you must have stabbed
they must have stabbed	I must have been stabbing
you must have been stabbing
he must have been stabbing
we must have been stabbing
you must have been stabbing
they must have been stabbing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not stab
you must not stab
he must not stab
we must not stab
you must not stab
they must not stab 	I must not be stabbing
you must not be stabbing
he must not be stabbing
we must not be stabbing
you must not be stabbing
they must not be stabbing	I must not have stabbed
you must not have stabbed
he must not have stabbed
we must not have stabbed
you must not have stabbed
they must not have stabbed	I must not have been stabbing
you must not have been stabbing
he must not have been stabbing
we must not have been stabbing
you must not have been stabbing
they must not have been stabbing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I stab?
must you stab?
must he stab?
must we stab?
must you stab?
must they stab? 	must I be stabbing?
must you be stabbing?
must he be stabbing?
must we be stabbing?
must you be stabbing?
must they be stabbing? 	must I have stabbed?
must you have stabbed?
must he have stabbed?
must we have stabbed?
must you have stabbed?
must they have stabbed? 	must I have been stabbing?
must you have been stabbing?
must he have been stabbing?
must we have been stabbing?
must you have been stabbing?
must they have been stabbing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not stab?
must you not stab?
must he not stab?
must we not stab?
must you not stab?
must they not stab? 	must I not be stabbing?
must you not be stabbing?
must he not be stabbing?
must we not be stabbing?
must you not be stabbing?
must they not be stabbing? 	must I not have stabbed?
must you not have stabbed?
must he not have stabbed?
must we not have stabbed?
must you not have stabbed?
must they not have stabbed? 	must I not have been stabbing?
must you not have been stabbing?
must he not have been stabbing?
must we not have been stabbing?
must you not have been stabbing?
must they not have been stabbing?