must dehisce
Verbo regular: dehisce - dehisced- dehisced

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must dehisce
you must dehisce
he must dehisce
we must dehisce
you must dehisce
they must dehisce 	I must be dehiscing
you must be dehiscing
he must be dehiscing
we must be dehiscing
you must be dehiscing
they must be dehiscing	I must have dehisced
you must have dehisced
he must have dehisced
we must have dehisced
you must have dehisced
they must have dehisced	I must have been dehiscing
you must have been dehiscing
he must have been dehiscing
we must have been dehiscing
you must have been dehiscing
they must have been dehiscing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not dehisce
you must not dehisce
he must not dehisce
we must not dehisce
you must not dehisce
they must not dehisce 	I must not be dehiscing
you must not be dehiscing
he must not be dehiscing
we must not be dehiscing
you must not be dehiscing
they must not be dehiscing	I must not have dehisced
you must not have dehisced
he must not have dehisced
we must not have dehisced
you must not have dehisced
they must not have dehisced	I must not have been dehiscing
you must not have been dehiscing
he must not have been dehiscing
we must not have been dehiscing
you must not have been dehiscing
they must not have been dehiscing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I dehisce?
must you dehisce?
must he dehisce?
must we dehisce?
must you dehisce?
must they dehisce? 	must I be dehiscing?
must you be dehiscing?
must he be dehiscing?
must we be dehiscing?
must you be dehiscing?
must they be dehiscing? 	must I have dehisced?
must you have dehisced?
must he have dehisced?
must we have dehisced?
must you have dehisced?
must they have dehisced? 	must I have been dehiscing?
must you have been dehiscing?
must he have been dehiscing?
must we have been dehiscing?
must you have been dehiscing?
must they have been dehiscing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not dehisce?
must you not dehisce?
must he not dehisce?
must we not dehisce?
must you not dehisce?
must they not dehisce? 	must I not be dehiscing?
must you not be dehiscing?
must he not be dehiscing?
must we not be dehiscing?
must you not be dehiscing?
must they not be dehiscing? 	must I not have dehisced?
must you not have dehisced?
must he not have dehisced?
must we not have dehisced?
must you not have dehisced?
must they not have dehisced? 	must I not have been dehiscing?
must you not have been dehiscing?
must he not have been dehiscing?
must we not have been dehiscing?
must you not have been dehiscing?
must they not have been dehiscing?