must require
Verbo regolare: require - required- required

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must require
you must require
she must require
we must require
you must require
they must require 	I must be requiring
you must be requiring
she must be requiring
we must be requiring
you must be requiring
they must be requiring	I must have required
you must have required
she must have required
we must have required
you must have required
they must have required	I must have been requiring
you must have been requiring
she must have been requiring
we must have been requiring
you must have been requiring
they must have been requiring	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must not require
you must not require
she must not require
we must not require
you must not require
they must not require 	I must not be requiring
you must not be requiring
she must not be requiring
we must not be requiring
you must not be requiring
they must not be requiring	I must not have required
you must not have required
she must not have required
we must not have required
you must not have required
they must not have required	I must not have been requiring
you must not have been requiring
she must not have been requiring
we must not have been requiring
you must not have been requiring
they must not have been requiring	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I require?
must you require?
must she require?
must we require?
must you require?
must they require? 	must I be requiring?
must you be requiring?
must she be requiring?
must we be requiring?
must you be requiring?
must they be requiring? 	must I have required?
must you have required?
must she have required?
must we have required?
must you have required?
must they have required? 	must I have been requiring?
must you have been requiring?
must she have been requiring?
must we have been requiring?
must you have been requiring?
must they have been requiring? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I not require?
must you not require?
must she not require?
must we not require?
must you not require?
must they not require? 	must I not be requiring?
must you not be requiring?
must she not be requiring?
must we not be requiring?
must you not be requiring?
must they not be requiring? 	must I not have required?
must you not have required?
must she not have required?
must we not have required?
must you not have required?
must they not have required? 	must I not have been requiring?
must you not have been requiring?
must she not have been requiring?
must we not have been requiring?
must you not have been requiring?
must they not have been requiring?