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"Pretérito" is a noun which is often translated as "preterite", and "a menudo" is a phrase which is often translated as "often". Learn more about the difference between "pretérito" and "a menudo" below.
el pretérito()
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
1. (grammar)
a menudo()
A phrase is a group of words commonly used together (e.g., once upon a time).
b. frequently
¿Siempre comen fuera? - No siempre, pero salimos a cenar a menudo.Do you always eat out? - Not always, but we do go out for dinner frequently.