must callous
Verbo regular: callous - calloused- calloused

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must callous
you must callous
he must callous
we must callous
you must callous
they must callous 	I must be callousing
you must be callousing
he must be callousing
we must be callousing
you must be callousing
they must be callousing	I must have calloused
you must have calloused
he must have calloused
we must have calloused
you must have calloused
they must have calloused	I must have been callousing
you must have been callousing
he must have been callousing
we must have been callousing
you must have been callousing
they must have been callousing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not callous
you must not callous
he must not callous
we must not callous
you must not callous
they must not callous 	I must not be callousing
you must not be callousing
he must not be callousing
we must not be callousing
you must not be callousing
they must not be callousing	I must not have calloused
you must not have calloused
he must not have calloused
we must not have calloused
you must not have calloused
they must not have calloused	I must not have been callousing
you must not have been callousing
he must not have been callousing
we must not have been callousing
you must not have been callousing
they must not have been callousing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I callous?
must you callous?
must he callous?
must we callous?
must you callous?
must they callous? 	must I be callousing?
must you be callousing?
must he be callousing?
must we be callousing?
must you be callousing?
must they be callousing? 	must I have calloused?
must you have calloused?
must he have calloused?
must we have calloused?
must you have calloused?
must they have calloused? 	must I have been callousing?
must you have been callousing?
must he have been callousing?
must we have been callousing?
must you have been callousing?
must they have been callousing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not callous?
must you not callous?
must he not callous?
must we not callous?
must you not callous?
must they not callous? 	must I not be callousing?
must you not be callousing?
must he not be callousing?
must we not be callousing?
must you not be callousing?
must they not be callousing? 	must I not have calloused?
must you not have calloused?
must he not have calloused?
must we not have calloused?
must you not have calloused?
must they not have calloused? 	must I not have been callousing?
must you not have been callousing?
must he not have been callousing?
must we not have been callousing?
must you not have been callousing?
must they not have been callousing?