must progress
Verbo regular: progress - progressed- progressed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must progress
you must progress
he must progress
we must progress
you must progress
they must progress 	I must be progressing
you must be progressing
he must be progressing
we must be progressing
you must be progressing
they must be progressing	I must have progressed
you must have progressed
he must have progressed
we must have progressed
you must have progressed
they must have progressed	I must have been progressing
you must have been progressing
he must have been progressing
we must have been progressing
you must have been progressing
they must have been progressing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't progress
you mustn't progress
he mustn't progress
we mustn't progress
you mustn't progress
they mustn't progress 	I mustn't be progressing
you mustn't be progressing
he mustn't be progressing
we mustn't be progressing
you mustn't be progressing
they mustn't be progressing	I mustn't have progressed
you mustn't have progressed
he mustn't have progressed
we mustn't have progressed
you mustn't have progressed
they mustn't have progressed	I mustn't have been progressing
you mustn't have been progressing
he mustn't have been progressing
we mustn't have been progressing
you mustn't have been progressing
they mustn't have been progressing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I progress?
must you progress?
must he progress?
must we progress?
must you progress?
must they progress? 	must I be progressing?
must you be progressing?
must he be progressing?
must we be progressing?
must you be progressing?
must they be progressing? 	must I have progressed?
must you have progressed?
must he have progressed?
must we have progressed?
must you have progressed?
must they have progressed? 	must I have been progressing?
must you have been progressing?
must he have been progressing?
must we have been progressing?
must you have been progressing?
must they have been progressing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I progress?
mustn't you progress?
mustn't he progress?
mustn't we progress?
mustn't you progress?
mustn't they progress? 	mustn't I be progressing?
mustn't you be progressing?
mustn't he be progressing?
mustn't we be progressing?
mustn't you be progressing?
mustn't they be progressing? 	mustn't I have progressed?
mustn't you have progressed?
mustn't he have progressed?
mustn't we have progressed?
mustn't you have progressed?
mustn't they have progressed? 	mustn't I have been progressing?
mustn't you have been progressing?
mustn't he have been progressing?
mustn't we have been progressing?
mustn't you have been progressing?
mustn't they have been progressing?