must label
Verbo regular: label - labelled- labelled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must label
you must label
she must label
we must label
you must label
they must label 	I must be labelling
you must be labelling
she must be labelling
we must be labelling
you must be labelling
they must be labelling	I must have labelled
you must have labelled
she must have labelled
we must have labelled
you must have labelled
they must have labelled	I must have been labelling
you must have been labelling
she must have been labelling
we must have been labelling
you must have been labelling
they must have been labelling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't label
you mustn't label
she mustn't label
we mustn't label
you mustn't label
they mustn't label 	I mustn't be labelling
you mustn't be labelling
she mustn't be labelling
we mustn't be labelling
you mustn't be labelling
they mustn't be labelling	I mustn't have labelled
you mustn't have labelled
she mustn't have labelled
we mustn't have labelled
you mustn't have labelled
they mustn't have labelled	I mustn't have been labelling
you mustn't have been labelling
she mustn't have been labelling
we mustn't have been labelling
you mustn't have been labelling
they mustn't have been labelling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I label?
must you label?
must she label?
must we label?
must you label?
must they label? 	must I be labelling?
must you be labelling?
must she be labelling?
must we be labelling?
must you be labelling?
must they be labelling? 	must I have labelled?
must you have labelled?
must she have labelled?
must we have labelled?
must you have labelled?
must they have labelled? 	must I have been labelling?
must you have been labelling?
must she have been labelling?
must we have been labelling?
must you have been labelling?
must they have been labelling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I label?
mustn't you label?
mustn't she label?
mustn't we label?
mustn't you label?
mustn't they label? 	mustn't I be labelling?
mustn't you be labelling?
mustn't she be labelling?
mustn't we be labelling?
mustn't you be labelling?
mustn't they be labelling? 	mustn't I have labelled?
mustn't you have labelled?
mustn't she have labelled?
mustn't we have labelled?
mustn't you have labelled?
mustn't they have labelled? 	mustn't I have been labelling?
mustn't you have been labelling?
mustn't she have been labelling?
mustn't we have been labelling?
mustn't you have been labelling?
mustn't they have been labelling?