must creep
Verbo irregular: creep - crept- crept

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must creep
you must creep
he must creep
we must creep
you must creep
they must creep 	I must be creeping
you must be creeping
he must be creeping
we must be creeping
you must be creeping
they must be creeping	I must have crept
you must have crept
he must have crept
we must have crept
you must have crept
they must have crept	I must have been creeping
you must have been creeping
he must have been creeping
we must have been creeping
you must have been creeping
they must have been creeping	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not creep
you must not creep
he must not creep
we must not creep
you must not creep
they must not creep 	I must not be creeping
you must not be creeping
he must not be creeping
we must not be creeping
you must not be creeping
they must not be creeping	I must not have crept
you must not have crept
he must not have crept
we must not have crept
you must not have crept
they must not have crept	I must not have been creeping
you must not have been creeping
he must not have been creeping
we must not have been creeping
you must not have been creeping
they must not have been creeping	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I creep?
must you creep?
must he creep?
must we creep?
must you creep?
must they creep? 	must I be creeping?
must you be creeping?
must he be creeping?
must we be creeping?
must you be creeping?
must they be creeping? 	must I have crept?
must you have crept?
must he have crept?
must we have crept?
must you have crept?
must they have crept? 	must I have been creeping?
must you have been creeping?
must he have been creeping?
must we have been creeping?
must you have been creeping?
must they have been creeping? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not creep?
must you not creep?
must he not creep?
must we not creep?
must you not creep?
must they not creep? 	must I not be creeping?
must you not be creeping?
must he not be creeping?
must we not be creeping?
must you not be creeping?
must they not be creeping? 	must I not have crept?
must you not have crept?
must he not have crept?
must we not have crept?
must you not have crept?
must they not have crept? 	must I not have been creeping?
must you not have been creeping?
must he not have been creeping?
must we not have been creeping?
must you not have been creeping?
must they not have been creeping?