vs 

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"Infinitivo" is a noun which is often translated as "infinitive", and "tras" is a preposition which is often translated as "after". Learn more about the difference between "infinitivo" and "tras" below.
el infinitivo(
een
-
fee
-
nee
-
tee
-
boh
)
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
masculine noun
a. infinitive
En este caso, el verbo permanece en infinitivo.In this case, the verb remains in the infinitive.
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tras(
trahs
)
A preposition is a word that indicates the relationship between a noun and another word (e.g., He ran through the door.).
preposition
a. after
Día tras día, ella va creciendo más fuerte.Day after day, she keeps growing stronger.
a. after
Ella anda tras el hombre de sus sueños.She's after the man of her dreams.
a. behind
La biblioteca de nuestro pueblo está tras el banco.The library in our town is behind the bank.
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