Usages of de
Hoy en clase hablamos de un tema fácil: la comida.
Today in class we talk about an easy topic: food.
La profesora habla de la ciudad en clase.
The teacher talks about the city in class.
Mi madre no está segura del horario y se siente un poco preocupada.
My mother is not sure about the schedule and feels a little worried.
Elon.io is an online learning platform
We have an entire course teaching Spanish grammar and vocabulary.