must vail
Verbo regolare: vail - vailed- vailed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must vail
you must vail
she must vail
we must vail
you must vail
they must vail 	I must be vailing
you must be vailing
she must be vailing
we must be vailing
you must be vailing
they must be vailing	I must have vailed
you must have vailed
she must have vailed
we must have vailed
you must have vailed
they must have vailed	I must have been vailing
you must have been vailing
she must have been vailing
we must have been vailing
you must have been vailing
they must have been vailing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must not vail
you must not vail
she must not vail
we must not vail
you must not vail
they must not vail 	I must not be vailing
you must not be vailing
she must not be vailing
we must not be vailing
you must not be vailing
they must not be vailing	I must not have vailed
you must not have vailed
she must not have vailed
we must not have vailed
you must not have vailed
they must not have vailed	I must not have been vailing
you must not have been vailing
she must not have been vailing
we must not have been vailing
you must not have been vailing
they must not have been vailing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I vail?
must you vail?
must she vail?
must we vail?
must you vail?
must they vail? 	must I be vailing?
must you be vailing?
must she be vailing?
must we be vailing?
must you be vailing?
must they be vailing? 	must I have vailed?
must you have vailed?
must she have vailed?
must we have vailed?
must you have vailed?
must they have vailed? 	must I have been vailing?
must you have been vailing?
must she have been vailing?
must we have been vailing?
must you have been vailing?
must they have been vailing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I not vail?
must you not vail?
must she not vail?
must we not vail?
must you not vail?
must they not vail? 	must I not be vailing?
must you not be vailing?
must she not be vailing?
must we not be vailing?
must you not be vailing?
must they not be vailing? 	must I not have vailed?
must you not have vailed?
must she not have vailed?
must we not have vailed?
must you not have vailed?
must they not have vailed? 	must I not have been vailing?
must you not have been vailing?
must she not have been vailing?
must we not have been vailing?
must you not have been vailing?
must they not have been vailing?