must fire
Verbo regolare: fire - fired- fired

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must fire
you must fire
she must fire
we must fire
you must fire
they must fire 	I must be firing
you must be firing
she must be firing
we must be firing
you must be firing
they must be firing	I must have fired
you must have fired
she must have fired
we must have fired
you must have fired
they must have fired	I must have been firing
you must have been firing
she must have been firing
we must have been firing
you must have been firing
they must have been firing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must not fire
you must not fire
she must not fire
we must not fire
you must not fire
they must not fire 	I must not be firing
you must not be firing
she must not be firing
we must not be firing
you must not be firing
they must not be firing	I must not have fired
you must not have fired
she must not have fired
we must not have fired
you must not have fired
they must not have fired	I must not have been firing
you must not have been firing
she must not have been firing
we must not have been firing
you must not have been firing
they must not have been firing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I fire?
must you fire?
must she fire?
must we fire?
must you fire?
must they fire? 	must I be firing?
must you be firing?
must she be firing?
must we be firing?
must you be firing?
must they be firing? 	must I have fired?
must you have fired?
must she have fired?
must we have fired?
must you have fired?
must they have fired? 	must I have been firing?
must you have been firing?
must she have been firing?
must we have been firing?
must you have been firing?
must they have been firing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I not fire?
must you not fire?
must she not fire?
must we not fire?
must you not fire?
must they not fire? 	must I not be firing?
must you not be firing?
must she not be firing?
must we not be firing?
must you not be firing?
must they not be firing? 	must I not have fired?
must you not have fired?
must she not have fired?
must we not have fired?
must you not have fired?
must they not have fired? 	must I not have been firing?
must you not have been firing?
must she not have been firing?
must we not have been firing?
must you not have been firing?
must they not have been firing?