must begin
Verbo irregolare: begin - began- begun

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must begin
you must begin
she must begin
we must begin
you must begin
they must begin 	I must be beginning
you must be beginning
she must be beginning
we must be beginning
you must be beginning
they must be beginning	I must have begun
you must have begun
she must have begun
we must have begun
you must have begun
they must have begun	I must have been beginning
you must have been beginning
she must have been beginning
we must have been beginning
you must have been beginning
they must have been beginning	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must not begin
you must not begin
she must not begin
we must not begin
you must not begin
they must not begin 	I must not be beginning
you must not be beginning
she must not be beginning
we must not be beginning
you must not be beginning
they must not be beginning	I must not have begun
you must not have begun
she must not have begun
we must not have begun
you must not have begun
they must not have begun	I must not have been beginning
you must not have been beginning
she must not have been beginning
we must not have been beginning
you must not have been beginning
they must not have been beginning	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I begin?
must you begin?
must she begin?
must we begin?
must you begin?
must they begin? 	must I be beginning?
must you be beginning?
must she be beginning?
must we be beginning?
must you be beginning?
must they be beginning? 	must I have begun?
must you have begun?
must she have begun?
must we have begun?
must you have begun?
must they have begun? 	must I have been beginning?
must you have been beginning?
must she have been beginning?
must we have been beginning?
must you have been beginning?
must they have been beginning? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I not begin?
must you not begin?
must she not begin?
must we not begin?
must you not begin?
must they not begin? 	must I not be beginning?
must you not be beginning?
must she not be beginning?
must we not be beginning?
must you not be beginning?
must they not be beginning? 	must I not have begun?
must you not have begun?
must she not have begun?
must we not have begun?
must you not have begun?
must they not have begun? 	must I not have been beginning?
must you not have been beginning?
must she not have been beginning?
must we not have been beginning?
must you not have been beginning?
must they not have been beginning?