must interchange
Verbo regolare: interchange - interchanged- interchanged

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must interchange
you must interchange
she must interchange
we must interchange
you must interchange
they must interchange 	I must be interchanging
you must be interchanging
she must be interchanging
we must be interchanging
you must be interchanging
they must be interchanging	I must have interchanged
you must have interchanged
she must have interchanged
we must have interchanged
you must have interchanged
they must have interchanged	I must have been interchanging
you must have been interchanging
she must have been interchanging
we must have been interchanging
you must have been interchanging
they must have been interchanging	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must not interchange
you must not interchange
she must not interchange
we must not interchange
you must not interchange
they must not interchange 	I must not be interchanging
you must not be interchanging
she must not be interchanging
we must not be interchanging
you must not be interchanging
they must not be interchanging	I must not have interchanged
you must not have interchanged
she must not have interchanged
we must not have interchanged
you must not have interchanged
they must not have interchanged	I must not have been interchanging
you must not have been interchanging
she must not have been interchanging
we must not have been interchanging
you must not have been interchanging
they must not have been interchanging	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I interchange?
must you interchange?
must she interchange?
must we interchange?
must you interchange?
must they interchange? 	must I be interchanging?
must you be interchanging?
must she be interchanging?
must we be interchanging?
must you be interchanging?
must they be interchanging? 	must I have interchanged?
must you have interchanged?
must she have interchanged?
must we have interchanged?
must you have interchanged?
must they have interchanged? 	must I have been interchanging?
must you have been interchanging?
must she have been interchanging?
must we have been interchanging?
must you have been interchanging?
must they have been interchanging? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I not interchange?
must you not interchange?
must she not interchange?
must we not interchange?
must you not interchange?
must they not interchange? 	must I not be interchanging?
must you not be interchanging?
must she not be interchanging?
must we not be interchanging?
must you not be interchanging?
must they not be interchanging? 	must I not have interchanged?
must you not have interchanged?
must she not have interchanged?
must we not have interchanged?
must you not have interchanged?
must they not have interchanged? 	must I not have been interchanging?
must you not have been interchanging?
must she not have been interchanging?
must we not have been interchanging?
must you not have been interchanging?
must they not have been interchanging?