must quarterback
Verbo regolare: quarterback - quarterbacked- quarterbacked

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must quarterback
you must quarterback
she must quarterback
we must quarterback
you must quarterback
they must quarterback 	I must be quarterbacking
you must be quarterbacking
she must be quarterbacking
we must be quarterbacking
you must be quarterbacking
they must be quarterbacking	I must have quarterbacked
you must have quarterbacked
she must have quarterbacked
we must have quarterbacked
you must have quarterbacked
they must have quarterbacked	I must have been quarterbacking
you must have been quarterbacking
she must have been quarterbacking
we must have been quarterbacking
you must have been quarterbacking
they must have been quarterbacking	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must not quarterback
you must not quarterback
she must not quarterback
we must not quarterback
you must not quarterback
they must not quarterback 	I must not be quarterbacking
you must not be quarterbacking
she must not be quarterbacking
we must not be quarterbacking
you must not be quarterbacking
they must not be quarterbacking	I must not have quarterbacked
you must not have quarterbacked
she must not have quarterbacked
we must not have quarterbacked
you must not have quarterbacked
they must not have quarterbacked	I must not have been quarterbacking
you must not have been quarterbacking
she must not have been quarterbacking
we must not have been quarterbacking
you must not have been quarterbacking
they must not have been quarterbacking	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I quarterback?
must you quarterback?
must she quarterback?
must we quarterback?
must you quarterback?
must they quarterback? 	must I be quarterbacking?
must you be quarterbacking?
must she be quarterbacking?
must we be quarterbacking?
must you be quarterbacking?
must they be quarterbacking? 	must I have quarterbacked?
must you have quarterbacked?
must she have quarterbacked?
must we have quarterbacked?
must you have quarterbacked?
must they have quarterbacked? 	must I have been quarterbacking?
must you have been quarterbacking?
must she have been quarterbacking?
must we have been quarterbacking?
must you have been quarterbacking?
must they have been quarterbacking? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I not quarterback?
must you not quarterback?
must she not quarterback?
must we not quarterback?
must you not quarterback?
must they not quarterback? 	must I not be quarterbacking?
must you not be quarterbacking?
must she not be quarterbacking?
must we not be quarterbacking?
must you not be quarterbacking?
must they not be quarterbacking? 	must I not have quarterbacked?
must you not have quarterbacked?
must she not have quarterbacked?
must we not have quarterbacked?
must you not have quarterbacked?
must they not have quarterbacked? 	must I not have been quarterbacking?
must you not have been quarterbacking?
must she not have been quarterbacking?
must we not have been quarterbacking?
must you not have been quarterbacking?
must they not have been quarterbacking?