Breakdown of El hombro está siendo esterilizado.
ser
to be
estar
to be (location/state)
el hombro
the shoulder
esterilizar
to sterilize
Questions & Answers about El hombro está siendo esterilizado.
Why use está siendo esterilizado instead of the passive with se, like se está esterilizando?
Está siendo esterilizado is the progressive analytical passive. While se está esterilizando (the passive se) is much more common in everyday spoken Spanish to say something is being done, the estar siendo + past participle structure is used in formal, technical, or medical contexts. It strongly emphasizes that the action is currently in progress and is being actively performed on the subject.
Does esterilizado change depending on the subject?
Yes. In the analytical passive voice, the past participle acts like an adjective. Because hombro is a masculine singular noun, you must use esterilizado. If the subject were feminine, like la herida (the wound), it would change to está siendo esterilizada.
Why does the sentence use El hombro (the shoulder) instead of a possessive like Su hombro (his/her shoulder)?
In Spanish, when referring to body parts, you generally use definite articles (el, la, los, las) instead of possessive adjectives (mi, tu, su). The context usually makes it clear whose shoulder is being treated.
Could I use the verb ser for the first part, like es siendo esterilizado?
No, that is a direct translation from English that doesn't work in Spanish. Progressive tenses for actions happening right now always use estar as the auxiliary verb. Here, estar gives us the progressive meaning (está), and the gerund siendo provides the passive meaning.
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