Questions & Answers about Guardo las llaves debajo del sofá.
Because Spanish often drops the subject pronoun when it is already clear from the verb ending.
You can say yo guardo if you want extra emphasis, contrast, or clarity, but in a neutral sentence guardo is more natural.
Guardar usually means to keep, to store, to put away, or sometimes to save.
In this sentence, it means something like:
- I keep the keys under the sofa
- I store the keys under the sofa
- I put the keys away under the sofa
It does not usually mean to guard in the English sense of protecting something physically. Even though the words look similar, guardar is broader and often means simply to keep/put away.