must freshen
Verbo regular: freshen - freshened- freshened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must freshen
you must freshen
she must freshen
we must freshen
you must freshen
they must freshen 	I must be freshening
you must be freshening
she must be freshening
we must be freshening
you must be freshening
they must be freshening	I must have freshened
you must have freshened
she must have freshened
we must have freshened
you must have freshened
they must have freshened	I must have been freshening
you must have been freshening
she must have been freshening
we must have been freshening
you must have been freshening
they must have been freshening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not freshen
you must not freshen
she must not freshen
we must not freshen
you must not freshen
they must not freshen 	I must not be freshening
you must not be freshening
she must not be freshening
we must not be freshening
you must not be freshening
they must not be freshening	I must not have freshened
you must not have freshened
she must not have freshened
we must not have freshened
you must not have freshened
they must not have freshened	I must not have been freshening
you must not have been freshening
she must not have been freshening
we must not have been freshening
you must not have been freshening
they must not have been freshening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I freshen?
must you freshen?
must she freshen?
must we freshen?
must you freshen?
must they freshen? 	must I be freshening?
must you be freshening?
must she be freshening?
must we be freshening?
must you be freshening?
must they be freshening? 	must I have freshened?
must you have freshened?
must she have freshened?
must we have freshened?
must you have freshened?
must they have freshened? 	must I have been freshening?
must you have been freshening?
must she have been freshening?
must we have been freshening?
must you have been freshening?
must they have been freshening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not freshen?
must you not freshen?
must she not freshen?
must we not freshen?
must you not freshen?
must they not freshen? 	must I not be freshening?
must you not be freshening?
must she not be freshening?
must we not be freshening?
must you not be freshening?
must they not be freshening? 	must I not have freshened?
must you not have freshened?
must she not have freshened?
must we not have freshened?
must you not have freshened?
must they not have freshened? 	must I not have been freshening?
must you not have been freshening?
must she not have been freshening?
must we not have been freshening?
must you not have been freshening?
must they not have been freshening?