must retestify
Verbo regular: retestify - retestified- retestified

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must retestify
you must retestify
she must retestify
we must retestify
you must retestify
they must retestify 	I must be retestifying
you must be retestifying
she must be retestifying
we must be retestifying
you must be retestifying
they must be retestifying	I must have retestified
you must have retestified
she must have retestified
we must have retestified
you must have retestified
they must have retestified	I must have been retestifying
you must have been retestifying
she must have been retestifying
we must have been retestifying
you must have been retestifying
they must have been retestifying	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not retestify
you must not retestify
she must not retestify
we must not retestify
you must not retestify
they must not retestify 	I must not be retestifying
you must not be retestifying
she must not be retestifying
we must not be retestifying
you must not be retestifying
they must not be retestifying	I must not have retestified
you must not have retestified
she must not have retestified
we must not have retestified
you must not have retestified
they must not have retestified	I must not have been retestifying
you must not have been retestifying
she must not have been retestifying
we must not have been retestifying
you must not have been retestifying
they must not have been retestifying	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I retestify?
must you retestify?
must she retestify?
must we retestify?
must you retestify?
must they retestify? 	must I be retestifying?
must you be retestifying?
must she be retestifying?
must we be retestifying?
must you be retestifying?
must they be retestifying? 	must I have retestified?
must you have retestified?
must she have retestified?
must we have retestified?
must you have retestified?
must they have retestified? 	must I have been retestifying?
must you have been retestifying?
must she have been retestifying?
must we have been retestifying?
must you have been retestifying?
must they have been retestifying? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not retestify?
must you not retestify?
must she not retestify?
must we not retestify?
must you not retestify?
must they not retestify? 	must I not be retestifying?
must you not be retestifying?
must she not be retestifying?
must we not be retestifying?
must you not be retestifying?
must they not be retestifying? 	must I not have retestified?
must you not have retestified?
must she not have retestified?
must we not have retestified?
must you not have retestified?
must they not have retestified? 	must I not have been retestifying?
must you not have been retestifying?
must she not have been retestifying?
must we not have been retestifying?
must you not have been retestifying?
must they not have been retestifying?