must submit
Verbo regular: submit - submitted- submitted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must submit
you must submit
he must submit
we must submit
you must submit
they must submit 	I must be submitting
you must be submitting
he must be submitting
we must be submitting
you must be submitting
they must be submitting	I must have submitted
you must have submitted
he must have submitted
we must have submitted
you must have submitted
they must have submitted	I must have been submitting
you must have been submitting
he must have been submitting
we must have been submitting
you must have been submitting
they must have been submitting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not submit
you must not submit
he must not submit
we must not submit
you must not submit
they must not submit 	I must not be submitting
you must not be submitting
he must not be submitting
we must not be submitting
you must not be submitting
they must not be submitting	I must not have submitted
you must not have submitted
he must not have submitted
we must not have submitted
you must not have submitted
they must not have submitted	I must not have been submitting
you must not have been submitting
he must not have been submitting
we must not have been submitting
you must not have been submitting
they must not have been submitting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I submit?
must you submit?
must he submit?
must we submit?
must you submit?
must they submit? 	must I be submitting?
must you be submitting?
must he be submitting?
must we be submitting?
must you be submitting?
must they be submitting? 	must I have submitted?
must you have submitted?
must he have submitted?
must we have submitted?
must you have submitted?
must they have submitted? 	must I have been submitting?
must you have been submitting?
must he have been submitting?
must we have been submitting?
must you have been submitting?
must they have been submitting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not submit?
must you not submit?
must he not submit?
must we not submit?
must you not submit?
must they not submit? 	must I not be submitting?
must you not be submitting?
must he not be submitting?
must we not be submitting?
must you not be submitting?
must they not be submitting? 	must I not have submitted?
must you not have submitted?
must he not have submitted?
must we not have submitted?
must you not have submitted?
must they not have submitted? 	must I not have been submitting?
must you not have been submitting?
must he not have been submitting?
must we not have been submitting?
must you not have been submitting?
must they not have been submitting?