are hard to
Ciertos hábitos son difíciles de perder.
Some habits are hard to break.
Los viejos hábitos son difíciles de romper.
Old habits are hard to break.
— O Auto da Compadecida (2000)
Sus poemas son difíciles de entender.
His poems are difficult to understand.
A veces, las decisiones de la emperatriz son difíciles de comprender.
Sometimes, the Empress's decisions are difficult to understand.
— La historia interminable (1984)
Sólo que son difíciles de encontrar porque están enterrados en la arena.
They are just difficult to find because they are buried in the sand.
— Ahora me ves 3 (2025)
Las razones que él ha dado son difíciles de comprender.
The reasons he has given are difficult to understand.
Algunas palabras son difíciles de definir.
Some words are difficult to define.
María encontró que todas las frases de Tom son difíciles de traducir.
María found that all of Tom’s sentences are difficult to translate.
Ciertas palabras son difíciles de definir.
Some words are difficult to define.