must recaution
Verbo regular: recaution - recautioned- recautioned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must recaution
you must recaution
he must recaution
we must recaution
you must recaution
they must recaution 	I must be recautioning
you must be recautioning
he must be recautioning
we must be recautioning
you must be recautioning
they must be recautioning	I must have recautioned
you must have recautioned
he must have recautioned
we must have recautioned
you must have recautioned
they must have recautioned	I must have been recautioning
you must have been recautioning
he must have been recautioning
we must have been recautioning
you must have been recautioning
they must have been recautioning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not recaution
you must not recaution
he must not recaution
we must not recaution
you must not recaution
they must not recaution 	I must not be recautioning
you must not be recautioning
he must not be recautioning
we must not be recautioning
you must not be recautioning
they must not be recautioning	I must not have recautioned
you must not have recautioned
he must not have recautioned
we must not have recautioned
you must not have recautioned
they must not have recautioned	I must not have been recautioning
you must not have been recautioning
he must not have been recautioning
we must not have been recautioning
you must not have been recautioning
they must not have been recautioning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I recaution?
must you recaution?
must he recaution?
must we recaution?
must you recaution?
must they recaution? 	must I be recautioning?
must you be recautioning?
must he be recautioning?
must we be recautioning?
must you be recautioning?
must they be recautioning? 	must I have recautioned?
must you have recautioned?
must he have recautioned?
must we have recautioned?
must you have recautioned?
must they have recautioned? 	must I have been recautioning?
must you have been recautioning?
must he have been recautioning?
must we have been recautioning?
must you have been recautioning?
must they have been recautioning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not recaution?
must you not recaution?
must he not recaution?
must we not recaution?
must you not recaution?
must they not recaution? 	must I not be recautioning?
must you not be recautioning?
must he not be recautioning?
must we not be recautioning?
must you not be recautioning?
must they not be recautioning? 	must I not have recautioned?
must you not have recautioned?
must he not have recautioned?
must we not have recautioned?
must you not have recautioned?
must they not have recautioned? 	must I not have been recautioning?
must you not have been recautioning?
must he not have been recautioning?
must we not have been recautioning?
must you not have been recautioning?
must they not have been recautioning?