must abrade
Verbo regular: abrade - abraded- abraded

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must abrade
you must abrade
he must abrade
we must abrade
you must abrade
they must abrade 	I must be abrading
you must be abrading
he must be abrading
we must be abrading
you must be abrading
they must be abrading	I must have abraded
you must have abraded
he must have abraded
we must have abraded
you must have abraded
they must have abraded	I must have been abrading
you must have been abrading
he must have been abrading
we must have been abrading
you must have been abrading
they must have been abrading	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not abrade
you must not abrade
he must not abrade
we must not abrade
you must not abrade
they must not abrade 	I must not be abrading
you must not be abrading
he must not be abrading
we must not be abrading
you must not be abrading
they must not be abrading	I must not have abraded
you must not have abraded
he must not have abraded
we must not have abraded
you must not have abraded
they must not have abraded	I must not have been abrading
you must not have been abrading
he must not have been abrading
we must not have been abrading
you must not have been abrading
they must not have been abrading	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I abrade?
must you abrade?
must he abrade?
must we abrade?
must you abrade?
must they abrade? 	must I be abrading?
must you be abrading?
must he be abrading?
must we be abrading?
must you be abrading?
must they be abrading? 	must I have abraded?
must you have abraded?
must he have abraded?
must we have abraded?
must you have abraded?
must they have abraded? 	must I have been abrading?
must you have been abrading?
must he have been abrading?
must we have been abrading?
must you have been abrading?
must they have been abrading? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not abrade?
must you not abrade?
must he not abrade?
must we not abrade?
must you not abrade?
must they not abrade? 	must I not be abrading?
must you not be abrading?
must he not be abrading?
must we not be abrading?
must you not be abrading?
must they not be abrading? 	must I not have abraded?
must you not have abraded?
must he not have abraded?
must we not have abraded?
must you not have abraded?
must they not have abraded? 	must I not have been abrading?
must you not have been abrading?
must he not have been abrading?
must we not have been abrading?
must you not have been abrading?
must they not have been abrading?