must unstick
Verbo regular: unstick - unsticked- unsticked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must unstick
you must unstick
she must unstick
we must unstick
you must unstick
they must unstick 	I must be unsticking
you must be unsticking
she must be unsticking
we must be unsticking
you must be unsticking
they must be unsticking	I must have unsticked
you must have unsticked
she must have unsticked
we must have unsticked
you must have unsticked
they must have unsticked	I must have been unsticking
you must have been unsticking
she must have been unsticking
we must have been unsticking
you must have been unsticking
they must have been unsticking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not unstick
you must not unstick
she must not unstick
we must not unstick
you must not unstick
they must not unstick 	I must not be unsticking
you must not be unsticking
she must not be unsticking
we must not be unsticking
you must not be unsticking
they must not be unsticking	I must not have unsticked
you must not have unsticked
she must not have unsticked
we must not have unsticked
you must not have unsticked
they must not have unsticked	I must not have been unsticking
you must not have been unsticking
she must not have been unsticking
we must not have been unsticking
you must not have been unsticking
they must not have been unsticking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I unstick?
must you unstick?
must she unstick?
must we unstick?
must you unstick?
must they unstick? 	must I be unsticking?
must you be unsticking?
must she be unsticking?
must we be unsticking?
must you be unsticking?
must they be unsticking? 	must I have unsticked?
must you have unsticked?
must she have unsticked?
must we have unsticked?
must you have unsticked?
must they have unsticked? 	must I have been unsticking?
must you have been unsticking?
must she have been unsticking?
must we have been unsticking?
must you have been unsticking?
must they have been unsticking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not unstick?
must you not unstick?
must she not unstick?
must we not unstick?
must you not unstick?
must they not unstick? 	must I not be unsticking?
must you not be unsticking?
must she not be unsticking?
must we not be unsticking?
must you not be unsticking?
must they not be unsticking? 	must I not have unsticked?
must you not have unsticked?
must she not have unsticked?
must we not have unsticked?
must you not have unsticked?
must they not have unsticked? 	must I not have been unsticking?
must you not have been unsticking?
must she not have been unsticking?
must we not have been unsticking?
must you not have been unsticking?
must they not have been unsticking?