must encrust
Verbo regular: encrust - encrusted- encrusted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must encrust
you must encrust
he must encrust
we must encrust
you must encrust
they must encrust 	I must be encrusting
you must be encrusting
he must be encrusting
we must be encrusting
you must be encrusting
they must be encrusting	I must have encrusted
you must have encrusted
he must have encrusted
we must have encrusted
you must have encrusted
they must have encrusted	I must have been encrusting
you must have been encrusting
he must have been encrusting
we must have been encrusting
you must have been encrusting
they must have been encrusting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not encrust
you must not encrust
he must not encrust
we must not encrust
you must not encrust
they must not encrust 	I must not be encrusting
you must not be encrusting
he must not be encrusting
we must not be encrusting
you must not be encrusting
they must not be encrusting	I must not have encrusted
you must not have encrusted
he must not have encrusted
we must not have encrusted
you must not have encrusted
they must not have encrusted	I must not have been encrusting
you must not have been encrusting
he must not have been encrusting
we must not have been encrusting
you must not have been encrusting
they must not have been encrusting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I encrust?
must you encrust?
must he encrust?
must we encrust?
must you encrust?
must they encrust? 	must I be encrusting?
must you be encrusting?
must he be encrusting?
must we be encrusting?
must you be encrusting?
must they be encrusting? 	must I have encrusted?
must you have encrusted?
must he have encrusted?
must we have encrusted?
must you have encrusted?
must they have encrusted? 	must I have been encrusting?
must you have been encrusting?
must he have been encrusting?
must we have been encrusting?
must you have been encrusting?
must they have been encrusting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not encrust?
must you not encrust?
must he not encrust?
must we not encrust?
must you not encrust?
must they not encrust? 	must I not be encrusting?
must you not be encrusting?
must he not be encrusting?
must we not be encrusting?
must you not be encrusting?
must they not be encrusting? 	must I not have encrusted?
must you not have encrusted?
must he not have encrusted?
must we not have encrusted?
must you not have encrusted?
must they not have encrusted? 	must I not have been encrusting?
must you not have been encrusting?
must he not have been encrusting?
must we not have been encrusting?
must you not have been encrusting?
must they not have been encrusting?