Study Guide on the Structure of the Simple Sentence

Introduction to Grammatical Sentence Structure

The study of simple sentence structure begins by understanding how information is conveyed efficiently in language. For instance, headlines such as "Perú clasificó al mundial" (Peru qualified for the World Cup) allow for immediate understanding because they contain a complete grammatical structure. Conversely, a phrase like "Los estudiantes de Alexander Graham Bell" (The students of Alexander Graham Bell) is often considered incomplete because it lacks a predicate to state what is being said about those students.

In the context of the social campaign #UnaSolaFuerza, various sentence structures are utilized to mobilize solidarity. The text states: "Todos los peruanos estamos unidos para ayudar a nuestros hermanos del norte del país" (All Peruvians are united to help our brothers in the north of the country). In this specific sentence, the subject is "Todos los peruanos," and an action of being united for a purpose is being expressed. Further analysis shows sentences like "Los peruanos somos una sola fuerza" (Peruvians are a single force), where "Los peruanos" is the subject, specifically categorized as an active and explicit subject. Within the campaign text, there are multiple sentences, though not all share the same structure; some are imperatives like "¡Vamos!" or "¡Dona víveres!" which function differently than the descriptive statements or administrative notices regarding the collection of supplies by private and state entities.

Classification of the Grammatical Sentence

From a syntactic point of view, the grammatical sentence is classified into two primary categories based on the possibility of dividing it into major components.

Unimembre sentences are those where it is impossible to identify a subject, or in some cases, neither a subject nor a predicate can be clearly distinguished. These often appear as interjections or impersonal expressions. Examples include "¡Ay!" (an exclamation), "¡Qué lástima!" (an expression of pity), or weather-related statements like "Está lloviendo intensamente en la sierra" (It is raining intensely in the highlands). They also include impersonal constructions with the verb "se," such as "Se vende llantas usadas" (Used tires for sale).

Bimembre sentences are characterized by the fact that they can be fragmented into a subject and a predicate. Importantly, the subject may be "tácito" (implicit or understood). These are further divided into simple and compound sentences. A simple sentence possesses a single conjugated verb, such as "Juan Pablo trajo noticias interesantes de su tierra" (Juan Pablo brought interesting news from his land). A compound sentence possesses more than one conjugated verb, such as "Lizy pudo comprar su entrada e irá al concierto" (Lizy was able to buy her ticket and will go to the concert).

The Subject: Recognition and Core Structure

The subject is defined as the noun phrase (sintagma nominal) about which something is predicated or expressed within the sentence. It can be explicit (expreso) or implicit (tácito). To recognize the subject, one must ask the question: "Who or what is being spoken about?"

The internal structure of the subject revolves around the Nucleus of the Subject (NS). The NS is the most important word in the phrase, and it is the element upon which modifiers act. Several types of words can function as the NS:

  1. Noun: "La pelota salió del campo" (The ball left the field), where "pelota" is the NS.
  2. Pronoun: "Solo tú me haces sentir amor" (Only you make me feel love), where "tú" is the NS.
  3. Infinitive: "Fumar es dañino para la salud" (Smoking is harmful to health), where "Fumar" functions as the NS.
  4. Substantivized word: "Lo bueno tarda en llegar" (The good takes time to arrive) or "El mañana es un misterio" (Tomorrow is a mystery).

Modifiers and Appositions within the Subject

Beyond the nucleus, the subject contains subordinates that clarify, characterize, or complement the idea.

The Direct Modifier (MD) consists of determiners (articles/numerals) or adjectives that accompany the nucleus directly without a link. For example, in the sentence "(Tres tristes tigres) tragaban trigo en un trigal," the subject contains two MDs ("Tres" and "tristes") affecting the NS ("tigres").

The Indirect Modifier (MI) is a phrase joined to the nucleus through a link, typically a preposition, forming a prepositional phrase. In the sentence "(El ruidoso perro de mi vecino) ladró toda la noche," the nucleus is "perro," and the phrase "de mi vecino" acts as the MI.

The Apposition (Apos.) is a noun phrase that semantically expresses the same thing as the nucleus, serving to explain or specify it. For example, in "(Lima, la ciudad de los Reyes), celebró su aniversario," the phrase "la ciudad de los Reyes" is an apposition to the nucleus "Lima."

Comprehensive Classification of Subjects

Subjects are categorized according to four main criteria:

By Number of Nuclei: A Simple Subject has only one nucleus (e.g., "Tú respetas las reglas"). A Compound Subject has more than one nucleus (e.g., "Luis y Fernando se van de viaje").

By Manifestation: An Express Subject is physically present in the sentence (e.g., "Ernesto buscaba sus apuntes"). A Tacit Subject is understood but not written (e.g., "Nunca cruces en luz roja," where the tacit subject is "Tú").

By Destination of Verbal Action: In an Active Subject, the subject performs the action (e.g., "Los alumnos estudiaron el tema"). In a Passive Subject, the subject receives the action (e.g., "El tema fue estudiado por los alumnos").

By Presence of Modifiers: An Incomplejo Subject has no modifiers (e.g., "Mamá fue de compras"). A Complejo Subject has at least one modifier (e.g., "Los niños corren alegremente," where "Los" modifies "niños").

The Predicate: Core and Complements

The predicate is the verbal phrase (sintagma verbal) that constitutes the content of the sentence, communicating information about the subject. To recognize it, one asks: "What is said about the subject?"

The Nucleus of the Predicate (NP) is a conjugated verb and forms the essence of the predicate. It can take three forms:

  1. Simple Verb: "Nosotros visitaremos la selva."
  2. Compound Verb: "Ustedes nos han traído mala suerte."
  3. Verbal Periphrasis: "Tú tienes que asumir tu responsabilidad."

Regarding Direct Objects (OD) and Indirect Objects (OI), the pronouns "me," "te," "se," and "nos" can function as either. Analysis is required to distinguish them. For example, in "Mi papá me trajo en su carro," "me" is a Direct Object. In "Me gustó mucho la película," "me" is an Indirect Object. Similarly, in "Te quise desde que te vi," "te" is an OD, while in "Te traje unos chocolates," "te" is an OI.

Typology of Circumstantials and Other Complements

Circurmtantials (CC) are adverbs or adverbial phrases expressing conditions under which actions occur. The specific types and their corresponding recognition questions are as follows:

  • Company: "¿Con quién?" (With whom?) - Example: "Mi hermano llegó con su esposa."
  • Place: "¿Dónde?" (Where?) - Example: "Acostumbraba ir a la playa."
  • Time: "¿Cuándo?" (When?) - Example: "El mensaje le llegó esta mañana."
  • Manner: "¿Cómo?" (How?) - Example: "Le saludó cortésmente."
  • Quantity: "¿Cuánto?" (How much?) - Example: "Hemos trabajado demasiado."
  • Cause: "¿Por qué?" (Why?) - Example: "Pedro estudia porque le gusta."
  • Purpose: "¿Para qué?" (What for?) - Example: "Te llamo para invitarte al cine."

Other specialized complements include:

  • Agent (Ag.): Exclusive to passive voice, headed by "por," indicating who performs the action (e.g., "La decisión será tomada por los miembros más antiguos").
  • Attribute (Atr.): Exclusive to copulative sentences (verbs ser, estar, parecer). It expresses a quality (e.g., "Cervantes fue un gran escritor").
  • Predicative (Pvo.): Found in predicative sentences to express a state or mode of the subject/OD (e.g., "Los conductores avanzan entusiasmados").
  • Prepositional Complement (C. Prep.): A prepositional phrase following the verb to add information (e.g., "Confía en tus propias habilidades").

Final Classification of Predicates

Predicates are fundamentally divided into two types:

Verbal Predicates have a predicative verb (non-copulative) as their nucleus. These verbs express actions or processes. Examples include: "El paciente tenía insomnio" and "Fernanda lee un libro."

Nominal Predicates contain a copulative verb (ser, estar, parecer). These express what the subject is or their state of being. Examples include: "Él es el jefe de Mario" and "El jefe estaba furioso."