must incrust
Verbo regular: incrust - incrusted- incrusted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must incrust
you must incrust
he must incrust
we must incrust
you must incrust
they must incrust 	I must be incrusting
you must be incrusting
he must be incrusting
we must be incrusting
you must be incrusting
they must be incrusting	I must have incrusted
you must have incrusted
he must have incrusted
we must have incrusted
you must have incrusted
they must have incrusted	I must have been incrusting
you must have been incrusting
he must have been incrusting
we must have been incrusting
you must have been incrusting
they must have been incrusting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't incrust
you mustn't incrust
he mustn't incrust
we mustn't incrust
you mustn't incrust
they mustn't incrust 	I mustn't be incrusting
you mustn't be incrusting
he mustn't be incrusting
we mustn't be incrusting
you mustn't be incrusting
they mustn't be incrusting	I mustn't have incrusted
you mustn't have incrusted
he mustn't have incrusted
we mustn't have incrusted
you mustn't have incrusted
they mustn't have incrusted	I mustn't have been incrusting
you mustn't have been incrusting
he mustn't have been incrusting
we mustn't have been incrusting
you mustn't have been incrusting
they mustn't have been incrusting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I incrust?
must you incrust?
must he incrust?
must we incrust?
must you incrust?
must they incrust? 	must I be incrusting?
must you be incrusting?
must he be incrusting?
must we be incrusting?
must you be incrusting?
must they be incrusting? 	must I have incrusted?
must you have incrusted?
must he have incrusted?
must we have incrusted?
must you have incrusted?
must they have incrusted? 	must I have been incrusting?
must you have been incrusting?
must he have been incrusting?
must we have been incrusting?
must you have been incrusting?
must they have been incrusting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I incrust?
mustn't you incrust?
mustn't he incrust?
mustn't we incrust?
mustn't you incrust?
mustn't they incrust? 	mustn't I be incrusting?
mustn't you be incrusting?
mustn't he be incrusting?
mustn't we be incrusting?
mustn't you be incrusting?
mustn't they be incrusting? 	mustn't I have incrusted?
mustn't you have incrusted?
mustn't he have incrusted?
mustn't we have incrusted?
mustn't you have incrusted?
mustn't they have incrusted? 	mustn't I have been incrusting?
mustn't you have been incrusting?
mustn't he have been incrusting?
mustn't we have been incrusting?
mustn't you have been incrusting?
mustn't they have been incrusting?