vs
QUICK ANSWER
"Must" is an auxiliary verb which is often translated as "deber", and "will" is a noun which is often translated as "la voluntad". Learn more about the difference between "must" and "will" below.
must(
muhst
)An auxiliary verb, or helper verb, is a conjugated verb that comes before a main verb and determines the main verb's tense, mood, or aspect (e.g., I have gone.).
1. (obligation)
2. (suggestion)
3. (likelihood)
a. deber de
You must be very tired after your long drive.Debes de estar muy cansado después de manejar tanto.
A noun is a word referring to a person, animal, place, thing, feeling, or idea (e.g., man, dog, house).
a. no direct translation
This refers to an idiomatic word or phrase for which there is no word-for-word translation.
Having a cell phone is a must nowadays.Hoy en día es indispensable tener un celular.
This album is a must for all fans of jazz music.Este es un álbum que no deben perderse todos los aficionados a la música jazz.
will(
wihl
)An auxiliary verb, or helper verb, is a conjugated verb that comes before a main verb and determines the main verb's tense, mood, or aspect (e.g., I have gone.).
a. no direct translation
This refers to an idiomatic word or phrase for which there is no word-for-word translation.
It will be done by tomorrow.Estará hecho mañana.
My package will arrive in a couple of days or so.Mi paquete llegará en un par de días.
A noun is a word referring to a person, animal, place, thing, feeling, or idea (e.g., man, dog, house).
a. la voluntad (F)
(f) means that a noun is feminine. Spanish nouns have a gender, which is either feminine (like la mujer or la luna) or masculine (like el hombre or el sol).
Her will helped her achieve her dream.Su voluntad la ayudó a cumplir su sueño.
3. (law)
a. el testamento (M)
(m) means that a noun is masculine. Spanish nouns have a gender, which is either feminine (like la mujer or la luna) or masculine (like el hombre or el sol).
He is not named in his mother's will.No aparece en el testamento de su madre.
A transitive verb is a verb that requires a direct object (e.g., I bought a book.).
5. (to ordain)
