must vivify
Verbo regular: vivify - vivified- vivified

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must vivify
you must vivify
he must vivify
we must vivify
you must vivify
they must vivify 	I must be vivifying
you must be vivifying
he must be vivifying
we must be vivifying
you must be vivifying
they must be vivifying	I must have vivified
you must have vivified
he must have vivified
we must have vivified
you must have vivified
they must have vivified	I must have been vivifying
you must have been vivifying
he must have been vivifying
we must have been vivifying
you must have been vivifying
they must have been vivifying	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not vivify
you must not vivify
he must not vivify
we must not vivify
you must not vivify
they must not vivify 	I must not be vivifying
you must not be vivifying
he must not be vivifying
we must not be vivifying
you must not be vivifying
they must not be vivifying	I must not have vivified
you must not have vivified
he must not have vivified
we must not have vivified
you must not have vivified
they must not have vivified	I must not have been vivifying
you must not have been vivifying
he must not have been vivifying
we must not have been vivifying
you must not have been vivifying
they must not have been vivifying	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I vivify?
must you vivify?
must he vivify?
must we vivify?
must you vivify?
must they vivify? 	must I be vivifying?
must you be vivifying?
must he be vivifying?
must we be vivifying?
must you be vivifying?
must they be vivifying? 	must I have vivified?
must you have vivified?
must he have vivified?
must we have vivified?
must you have vivified?
must they have vivified? 	must I have been vivifying?
must you have been vivifying?
must he have been vivifying?
must we have been vivifying?
must you have been vivifying?
must they have been vivifying? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not vivify?
must you not vivify?
must he not vivify?
must we not vivify?
must you not vivify?
must they not vivify? 	must I not be vivifying?
must you not be vivifying?
must he not be vivifying?
must we not be vivifying?
must you not be vivifying?
must they not be vivifying? 	must I not have vivified?
must you not have vivified?
must he not have vivified?
must we not have vivified?
must you not have vivified?
must they not have vivified? 	must I not have been vivifying?
must you not have been vivifying?
must he not have been vivifying?
must we not have been vivifying?
must you not have been vivifying?
must they not have been vivifying?