Breakdown of El jefe vio una cucaracha en el piso, por eso se echó a temblar.
una
a, an (feminine)
en
in / on / at
ver
to see / to look / appear
el piso
the floor
Questions & Answers about El jefe vio una cucaracha en el piso, por eso se echó a temblar.
Why use se echó a temblar instead of just empezó a temblar?
The structure echarse a + infinitive is used to say that someone suddenly started doing something. While empezó a temblar simply means "he started to tremble," using se echó a emphasizes that the trembling was abrupt, spontaneous, and out of his control. This phrase is very common with emotional or physical reactions like crying (echarse a llorar), laughing (echarse a reír), or trembling.
Why is there a se before echó?
This specific sudden-action phrase requires the reflexive verb echarse. The base verb echar usually means "to throw" or "to put." When you add the reflexive pronoun se and the preposition a (echarse a), the meaning changes entirely to "to suddenly begin."
Could I use suelo instead of piso for "floor"?
Yes, but in Latin America, piso is the most standard word for an indoor floor. Suelo is also understood and used, but it more frequently refers to the "ground" outside or the physical earth.