Breakdown of El abuelo prometió que el cohete estaría en la luna.
en
in / on / by (means of transport) / about (after pensar)
estar
to be (location/state)
el abuelo
the grandfather
que
that (relative pronoun, conjunction)
la luna
the moon
prometer
to promise
el cohete
the rocket
Questions & Answers about El abuelo prometió que el cohete estaría en la luna.
Why is estaría used here instead of the future tense estará?
This is an example of reported speech. Because the grandfather's promise was made in the past (prometió), his original future-tense thought ("The rocket will be on the moon" / estará) shifts a step back into the conditional tense (estaría). It works exactly like English, where "will" changes to "would" after a past-tense verb.
Why use estaría (from estar) rather than sería (from ser)?
We use estar to talk about the physical location of people and things. Even though a rocket landing on the moon is a major event, the phrase en la luna simply expresses where the rocket is located, so estar is required.
Why is prometió in the preterite rather than the imperfect (prometía)?
Why isn't luna capitalized in this sentence?
In Spanish, the names of celestial bodies like luna (moon), sol (sun), and tierra (earth) are written in lowercase for general, everyday use. They are usually only capitalized in strict scientific or astronomical contexts.
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