must unbuild
Verbo irregolare: unbuild - unbuilt- unbuilt

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must unbuild
you must unbuild
she must unbuild
we must unbuild
you must unbuild
they must unbuild 	I must be unbuilding
you must be unbuilding
she must be unbuilding
we must be unbuilding
you must be unbuilding
they must be unbuilding	I must have unbuilt
you must have unbuilt
she must have unbuilt
we must have unbuilt
you must have unbuilt
they must have unbuilt	I must have been unbuilding
you must have been unbuilding
she must have been unbuilding
we must have been unbuilding
you must have been unbuilding
they must have been unbuilding	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must not unbuild
you must not unbuild
she must not unbuild
we must not unbuild
you must not unbuild
they must not unbuild 	I must not be unbuilding
you must not be unbuilding
she must not be unbuilding
we must not be unbuilding
you must not be unbuilding
they must not be unbuilding	I must not have unbuilt
you must not have unbuilt
she must not have unbuilt
we must not have unbuilt
you must not have unbuilt
they must not have unbuilt	I must not have been unbuilding
you must not have been unbuilding
she must not have been unbuilding
we must not have been unbuilding
you must not have been unbuilding
they must not have been unbuilding	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I unbuild?
must you unbuild?
must she unbuild?
must we unbuild?
must you unbuild?
must they unbuild? 	must I be unbuilding?
must you be unbuilding?
must she be unbuilding?
must we be unbuilding?
must you be unbuilding?
must they be unbuilding? 	must I have unbuilt?
must you have unbuilt?
must she have unbuilt?
must we have unbuilt?
must you have unbuilt?
must they have unbuilt? 	must I have been unbuilding?
must you have been unbuilding?
must she have been unbuilding?
must we have been unbuilding?
must you have been unbuilding?
must they have been unbuilding? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I not unbuild?
must you not unbuild?
must she not unbuild?
must we not unbuild?
must you not unbuild?
must they not unbuild? 	must I not be unbuilding?
must you not be unbuilding?
must she not be unbuilding?
must we not be unbuilding?
must you not be unbuilding?
must they not be unbuilding? 	must I not have unbuilt?
must you not have unbuilt?
must she not have unbuilt?
must we not have unbuilt?
must you not have unbuilt?
must they not have unbuilt? 	must I not have been unbuilding?
must you not have been unbuilding?
must she not have been unbuilding?
must we not have been unbuilding?
must you not have been unbuilding?
must they not have been unbuilding?