must desist
Verbo regular: desist - desisted- desisted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must desist
you must desist
he must desist
we must desist
you must desist
they must desist 	I must be desisting
you must be desisting
he must be desisting
we must be desisting
you must be desisting
they must be desisting	I must have desisted
you must have desisted
he must have desisted
we must have desisted
you must have desisted
they must have desisted	I must have been desisting
you must have been desisting
he must have been desisting
we must have been desisting
you must have been desisting
they must have been desisting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not desist
you must not desist
he must not desist
we must not desist
you must not desist
they must not desist 	I must not be desisting
you must not be desisting
he must not be desisting
we must not be desisting
you must not be desisting
they must not be desisting	I must not have desisted
you must not have desisted
he must not have desisted
we must not have desisted
you must not have desisted
they must not have desisted	I must not have been desisting
you must not have been desisting
he must not have been desisting
we must not have been desisting
you must not have been desisting
they must not have been desisting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I desist?
must you desist?
must he desist?
must we desist?
must you desist?
must they desist? 	must I be desisting?
must you be desisting?
must he be desisting?
must we be desisting?
must you be desisting?
must they be desisting? 	must I have desisted?
must you have desisted?
must he have desisted?
must we have desisted?
must you have desisted?
must they have desisted? 	must I have been desisting?
must you have been desisting?
must he have been desisting?
must we have been desisting?
must you have been desisting?
must they have been desisting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not desist?
must you not desist?
must he not desist?
must we not desist?
must you not desist?
must they not desist? 	must I not be desisting?
must you not be desisting?
must he not be desisting?
must we not be desisting?
must you not be desisting?
must they not be desisting? 	must I not have desisted?
must you not have desisted?
must he not have desisted?
must we not have desisted?
must you not have desisted?
must they not have desisted? 	must I not have been desisting?
must you not have been desisting?
must he not have been desisting?
must we not have been desisting?
must you not have been desisting?
must they not have been desisting?