Breakdown of Hoy he aprobado una asignatura difícil.
un
a, an, some
difícil
difficult
hoy
today
haber
to have (auxiliary)
Questions & Answers about Hoy he aprobado una asignatura difícil.
Why do we use he aprobado here instead of the simple past?
Because of the word Hoy (Today). In Spain, when an action happens in a time period that isn't over yet (like today, this week, or this month), we use this present perfect tense (he aprobado).
If a woman is speaking, should she say he aprobada?
Does asignatura mean "signature"?
No, it is a false friend! Asignatura means a school subject or course (like math or history). If you want to say "signature" in Spanish, the word is firma.
Why does difícil come after asignatura?
In Spanish, descriptive adjectives like difícil (difficult) almost always come directly after the noun they describe. That is why it follows asignatura (subject) instead of coming before it like in English.