: Because "su" can mean his, her, your, or their, Spanish speakers often revert to the "de" structure (e.g., la casa de ella ) to avoid confusion.

1. The Prepositional Formula: [Object] + [Ser] + de + [Owner]

¿De quién es esta silla? (silla = feminine, singular)

It is a highly effective, albeit dry, drill for mastering a critical grammatical hurdle in the Spanish language. If you are using it to study, ensure you pay close attention to and noun-adjective agreement , as these are the most frequent points where students lose points. P2-19 Estructura 1: ¿De quién es?... - Course Hero

When you replace the person's name with a word like "my," "your," or "their," you must use possessive adjectives. These adjectives and sometimes gender with the noun being possessed , not the person who owns it. Singular Form Plural Form English Translation Yo Tú Your (informal) Él / Ella / Ud. His / Her / Your (formal) Nosotros/as nuestros/as Ellos / Ellas / Uds. Their / Your (plural) Step-by-Step Guide to Solving the Assignment

Typing de el hermano will immediately trigger an incorrect mark on auto-graded platforms. Always condense it to del .

¿De quién es la mochila? (Whose backpack is it?) Answer: La mochila es de Ana. (The backpack is Ana's.) Practice It UPD: Typical Practice Scenarios To excel in this section, prepare for these types of tasks: Rephrasing "De" to Possessives: Prompt: Es el coche de nosotros. Answer: Es nuestro coche. Answering "De Quién" Questions: Question: ¿De quién son estos apuntes? Answer: Son de Felipe . Completing Dialogues: A: ¿Es tu teléfono? B: No, no es _____. Es _____ (suyo/de ella). Key Tips for Mastery

If the owner is masculine singular ( el ), the preposition de and the article el contract to form del . Example: de + el hermano →right arrow del hermano . Example: de + la hermana →right arrow de la hermana (no contraction). Structure B: Simplification with Possessive Adjectives

This article will break down how to approach the "De quién es?" exercises on P219, providing examples, explanations of the grammatical rules, and strategies to successfully complete the practice. Understanding the Structure: ¿De quién(es)?

Review these simulated textbook examples modeled after Course Hero assignment keys to check your answers before submitting your workbook: ¿De quién es la mochila? (Carlos) Answer: Es la mochila de Carlos. / Es su mochila. Prompt: ¿De quién son los papeles? (Nosotros) Answer: Son nuestros papeles. Prompt: ¿De quién es la pluma? (Yo) Answer: Es mi pluma. Prompt: ¿De quién son las maletas? (Ellas) Answer: Son las maletas de ellas . / Son sus maletas. Common Pitfalls to Avoid

Possessive adjectives must match the number (singular/plural) of the item possessed, not the owner. Mi amigo (singular) vs. Mis amigos (plural).

I notice you're asking about "p219 estructura 1 de quien es" which appears to be a Spanish grammar exercise related to the possessive structure (Whose is...?), likely from a textbook.