must grave
Verbo regular: grave - graved- graved

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must grave
you must grave
he must grave
we must grave
you must grave
they must grave 	I must be graving
you must be graving
he must be graving
we must be graving
you must be graving
they must be graving	I must have graved
you must have graved
he must have graved
we must have graved
you must have graved
they must have graved	I must have been graving
you must have been graving
he must have been graving
we must have been graving
you must have been graving
they must have been graving	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not grave
you must not grave
he must not grave
we must not grave
you must not grave
they must not grave 	I must not be graving
you must not be graving
he must not be graving
we must not be graving
you must not be graving
they must not be graving	I must not have graved
you must not have graved
he must not have graved
we must not have graved
you must not have graved
they must not have graved	I must not have been graving
you must not have been graving
he must not have been graving
we must not have been graving
you must not have been graving
they must not have been graving	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I grave?
must you grave?
must he grave?
must we grave?
must you grave?
must they grave? 	must I be graving?
must you be graving?
must he be graving?
must we be graving?
must you be graving?
must they be graving? 	must I have graved?
must you have graved?
must he have graved?
must we have graved?
must you have graved?
must they have graved? 	must I have been graving?
must you have been graving?
must he have been graving?
must we have been graving?
must you have been graving?
must they have been graving? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not grave?
must you not grave?
must he not grave?
must we not grave?
must you not grave?
must they not grave? 	must I not be graving?
must you not be graving?
must he not be graving?
must we not be graving?
must you not be graving?
must they not be graving? 	must I not have graved?
must you not have graved?
must he not have graved?
must we not have graved?
must you not have graved?
must they not have graved? 	must I not have been graving?
must you not have been graving?
must he not have been graving?
must we not have been graving?
must you not have been graving?
must they not have been graving?