must deskill
Verbo regular: deskill - deskilled- deskilled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must deskill
you must deskill
he must deskill
we must deskill
you must deskill
they must deskill 	I must be deskilling
you must be deskilling
he must be deskilling
we must be deskilling
you must be deskilling
they must be deskilling	I must have deskilled
you must have deskilled
he must have deskilled
we must have deskilled
you must have deskilled
they must have deskilled	I must have been deskilling
you must have been deskilling
he must have been deskilling
we must have been deskilling
you must have been deskilling
they must have been deskilling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not deskill
you must not deskill
he must not deskill
we must not deskill
you must not deskill
they must not deskill 	I must not be deskilling
you must not be deskilling
he must not be deskilling
we must not be deskilling
you must not be deskilling
they must not be deskilling	I must not have deskilled
you must not have deskilled
he must not have deskilled
we must not have deskilled
you must not have deskilled
they must not have deskilled	I must not have been deskilling
you must not have been deskilling
he must not have been deskilling
we must not have been deskilling
you must not have been deskilling
they must not have been deskilling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I deskill?
must you deskill?
must he deskill?
must we deskill?
must you deskill?
must they deskill? 	must I be deskilling?
must you be deskilling?
must he be deskilling?
must we be deskilling?
must you be deskilling?
must they be deskilling? 	must I have deskilled?
must you have deskilled?
must he have deskilled?
must we have deskilled?
must you have deskilled?
must they have deskilled? 	must I have been deskilling?
must you have been deskilling?
must he have been deskilling?
must we have been deskilling?
must you have been deskilling?
must they have been deskilling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not deskill?
must you not deskill?
must he not deskill?
must we not deskill?
must you not deskill?
must they not deskill? 	must I not be deskilling?
must you not be deskilling?
must he not be deskilling?
must we not be deskilling?
must you not be deskilling?
must they not be deskilling? 	must I not have deskilled?
must you not have deskilled?
must he not have deskilled?
must we not have deskilled?
must you not have deskilled?
must they not have deskilled? 	must I not have been deskilling?
must you not have been deskilling?
must he not have been deskilling?
must we not have been deskilling?
must you not have been deskilling?
must they not have been deskilling?