must disk
Verbo regular: disk - disked- disked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must disk
you must disk
she must disk
we must disk
you must disk
they must disk 	I must be disking
you must be disking
she must be disking
we must be disking
you must be disking
they must be disking	I must have disked
you must have disked
she must have disked
we must have disked
you must have disked
they must have disked	I must have been disking
you must have been disking
she must have been disking
we must have been disking
you must have been disking
they must have been disking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not disk
you must not disk
she must not disk
we must not disk
you must not disk
they must not disk 	I must not be disking
you must not be disking
she must not be disking
we must not be disking
you must not be disking
they must not be disking	I must not have disked
you must not have disked
she must not have disked
we must not have disked
you must not have disked
they must not have disked	I must not have been disking
you must not have been disking
she must not have been disking
we must not have been disking
you must not have been disking
they must not have been disking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I disk?
must you disk?
must she disk?
must we disk?
must you disk?
must they disk? 	must I be disking?
must you be disking?
must she be disking?
must we be disking?
must you be disking?
must they be disking? 	must I have disked?
must you have disked?
must she have disked?
must we have disked?
must you have disked?
must they have disked? 	must I have been disking?
must you have been disking?
must she have been disking?
must we have been disking?
must you have been disking?
must they have been disking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not disk?
must you not disk?
must she not disk?
must we not disk?
must you not disk?
must they not disk? 	must I not be disking?
must you not be disking?
must she not be disking?
must we not be disking?
must you not be disking?
must they not be disking? 	must I not have disked?
must you not have disked?
must she not have disked?
must we not have disked?
must you not have disked?
must they not have disked? 	must I not have been disking?
must you not have been disking?
must she not have been disking?
must we not have been disking?
must you not have been disking?
must they not have been disking?