must purify
Verbo regolare: purify - purified- purified

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must purify
you must purify
she must purify
we must purify
you must purify
they must purify 	I must be purifying
you must be purifying
she must be purifying
we must be purifying
you must be purifying
they must be purifying	I must have purified
you must have purified
she must have purified
we must have purified
you must have purified
they must have purified	I must have been purifying
you must have been purifying
she must have been purifying
we must have been purifying
you must have been purifying
they must have been purifying	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must not purify
you must not purify
she must not purify
we must not purify
you must not purify
they must not purify 	I must not be purifying
you must not be purifying
she must not be purifying
we must not be purifying
you must not be purifying
they must not be purifying	I must not have purified
you must not have purified
she must not have purified
we must not have purified
you must not have purified
they must not have purified	I must not have been purifying
you must not have been purifying
she must not have been purifying
we must not have been purifying
you must not have been purifying
they must not have been purifying	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I purify?
must you purify?
must she purify?
must we purify?
must you purify?
must they purify? 	must I be purifying?
must you be purifying?
must she be purifying?
must we be purifying?
must you be purifying?
must they be purifying? 	must I have purified?
must you have purified?
must she have purified?
must we have purified?
must you have purified?
must they have purified? 	must I have been purifying?
must you have been purifying?
must she have been purifying?
must we have been purifying?
must you have been purifying?
must they have been purifying? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I not purify?
must you not purify?
must she not purify?
must we not purify?
must you not purify?
must they not purify? 	must I not be purifying?
must you not be purifying?
must she not be purifying?
must we not be purifying?
must you not be purifying?
must they not be purifying? 	must I not have purified?
must you not have purified?
must she not have purified?
must we not have purified?
must you not have purified?
must they not have purified? 	must I not have been purifying?
must you not have been purifying?
must she not have been purifying?
must we not have been purifying?
must you not have been purifying?
must they not have been purifying?