Mostly when youre thinking of it, it's present tense while also being future tense as well, could, meaning in the present. For example, "I could do that". More than likely your sentence is in the present
Answer:
Goliat se rió y dijo que un niño no lo derribaría nunca. David el joven pastor, con una expresión de desprecio y una risa malvada, tomó una de sus piedras y la lanzó con su honda, dando justo en la cabeza a Goliat. Éste tambaleó y cayó muerto directamente. Entonces David tomó la espada de Goliat y le cortó la cabeza.
Answer:
I waited for the bus, but it was late
We will have lunch outside unless it is raining.
Because I was sick, I did not go to school.
I'll see you at the movie, which is supposed to be good.
