must teach
Verbo irregolare: teach - taught- taught

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must teach
you must teach
she must teach
we must teach
you must teach
they must teach 	I must be teaching
you must be teaching
she must be teaching
we must be teaching
you must be teaching
they must be teaching	I must have taught
you must have taught
she must have taught
we must have taught
you must have taught
they must have taught	I must have been teaching
you must have been teaching
she must have been teaching
we must have been teaching
you must have been teaching
they must have been teaching	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must not teach
you must not teach
she must not teach
we must not teach
you must not teach
they must not teach 	I must not be teaching
you must not be teaching
she must not be teaching
we must not be teaching
you must not be teaching
they must not be teaching	I must not have taught
you must not have taught
she must not have taught
we must not have taught
you must not have taught
they must not have taught	I must not have been teaching
you must not have been teaching
she must not have been teaching
we must not have been teaching
you must not have been teaching
they must not have been teaching	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I teach?
must you teach?
must she teach?
must we teach?
must you teach?
must they teach? 	must I be teaching?
must you be teaching?
must she be teaching?
must we be teaching?
must you be teaching?
must they be teaching? 	must I have taught?
must you have taught?
must she have taught?
must we have taught?
must you have taught?
must they have taught? 	must I have been teaching?
must you have been teaching?
must she have been teaching?
must we have been teaching?
must you have been teaching?
must they have been teaching? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I not teach?
must you not teach?
must she not teach?
must we not teach?
must you not teach?
must they not teach? 	must I not be teaching?
must you not be teaching?
must she not be teaching?
must we not be teaching?
must you not be teaching?
must they not be teaching? 	must I not have taught?
must you not have taught?
must she not have taught?
must we not have taught?
must you not have taught?
must they not have taught? 	must I not have been teaching?
must you not have been teaching?
must she not have been teaching?
must we not have been teaching?
must you not have been teaching?
must they not have been teaching?