AULAFYCurso abierto de inglés C1
HomeCourseRenewable Energy & Smart GridsGrammar Focus
Renewable Energy & Smart GridsL02
grammar

Grammar Focus

Detailed explanation, examples and controlled practice for the unit grammar point.

60 minC1c1grammarrenewable-energy-smart-gridsindirect questionsembedded clausesformal englishword order

Lesson objectives

  • Recognise and control Indirect questions and embedded clauses (I wonder whether…).
  • Notice common errors Spanish-speaking learners make at advanced level.
  • Apply the structure in exam-style sentences related to renewable energy & smart grids.

Explicación (en español)

En este nivel (C1), las indirect questions y las embedded clauses son esenciales para sonar más diplomático, formal y educado. En lugar de hacer una pregunta directa que puede sonar brusca, la "incrustamos" dentro de una frase introductoria como “I wonder...”, “Could you tell me...”, o “I am not sure...”. Esto suaviza el tono, algo vital en entornos profesionales o académicos.

La regla de oro que suele causar problemas es el orden de las palabras. En una pregunta directa usamos la estructura de inversión (verbo + sujeto: Where is the grid?). Sin embargo, en una pregunta indirecta, la cláusula vuelve al orden de una afirmación (sujeto + verbo: ...where the grid is). Es un error muy común entre hispanohablantes mantener la estructura de pregunta (usar el auxiliar do/does/did) dentro de la cláusula incrustada, lo cual es gramaticalmente incorrecto en inglés.

Otro punto crucial es el uso de whether o if. Cuando la pregunta original es de tipo "sí/no" (sin una partícula interrogativa como what o where), debemos introducir la cláusula con whether (más formal) o if. Por ejemplo, para pasar de "Is the solar panel efficient?" a una forma indirecta, diríamos: "I wonder whether the solar panel is efficient."

Finalmente, recuerda que en las preguntas indirectas no se utiliza el signo de interrogación si la frase introductoria es una afirmación (ej. I wonder...). El signo de interrogación solo se mantiene si la frase introductoria es una pregunta real (ej. Could you tell me...?).

Form — estructura

Type Direct Question Indirect / Embedded Clause Rule
Wh- Question Where is the wind farm? I wonder where the wind farm is. Subject + Verb (No inversion)
Yes/No Question Does the grid use AI? I am not sure if/whether the grid uses AI. Use if/whether + Subject + Verb
Modal/Auxiliary How much will it cost? Could you tell me how much it will cost? Remove auxiliary do/does/did

Examples

  1. I wonder whether the smart grid can handle the peak load. (Me pregunto si la red inteligente puede soportar la carga máxima).
  2. Could you explain how the photovoltaic cells convert sunlight into electricity? (¿Podría explicar cómo las células fotovoltaicas convierten la luz solar en electricidad?).
  3. Scientists are investigating whether hydrogen fuel is a viable alternative. (Los científicos están investigando si el hidrógeno es una alternativa viable).
  4. I was not sure how much energy the wind turbines would produce last night. (No estaba seguro de cuánta energía producirían los aerogeneradores anoche).
  5. We need to find out if the current infrastructure supports renewable integration. (Necesitamos averiguar si la infraestructura actual permite la integración de renovables).
  6. It is unclear why the battery storage system failed. (No está claro por qué falló el sistema de almacenamiento de baterías).
  7. I would like to know whether the government will subsidise green energy. (Me gustaría saber si el gobierno subvencionará la energía verde).
  8. They asked us where the new hydroelectric dam would be located. (Nos preguntaron dónde se ubicaría la nueva presa hidroeléctrica).

Contrast

  1. ✗ I wonder where is the solar farm. / ✓ I wonder where the solar farm is. (Error: Inversión incorrecta en cláusula incrustada).
  2. ✗ Could you tell me how much does it cost? / ✓ Could you tell me how much it costs? (Error: Uso innecesario del auxiliar does).
  3. ✗ I don't know if will it rain tomorrow. / ✓ I don't know if it will rain tomorrow. (Error: Orden sujeto + verbo).
  4. ✗ I wonder if is the energy sustainable. / ✓ I wonder whether the energy is sustainable. (Error: Falta el sujeto en la cláusula).

Mini-quiz — 10 preguntas

Part 1: Rewrite the direct questions into indirect/embedded clauses.

  1. Where is the new biomass plant located? I wonder... ____________.

  2. Does the smart meter track usage in real-time? I am not sure... ________.

  3. How can we improve energy efficiency? The committee wants to know... ______.

Part 2: Multiple Choice. Choose the correct option (a, b, or c).

  1. I was wondering whether __ more investment in tidal energy. a) would there be b) there would be c) will there be

  2. Could you tell me how __ the wind turbines? a) much do they cost b) cost they much c) much they cost

  3. It is uncertain if __ the new regulations will be implemented. a) will the government b) the government will c) does the government

Part 3: Error Correction. Identify and fix the mistake in each sentence.

  1. I don't know where is the geothermal source. ____________.

  2. We need to ask how can we reduce carbon emissions. ____________.

  3. I wonder if does the battery last long enough. ____________.

  4. They asked me if would the sun shine all day. ____________.

Respuestas: 1. I wonder where the new biomass plant is located. 2. I am not sure whether/if the smart meter tracks usage in real-time. 3. The committee wants to know how we can improve energy efficiency. 4. b) there would be 5. c) much they cost 6. b) the government will 7. I don't know where the geothermal source is. 8. We need to ask how we can reduce carbon emissions. 9. I wonder if the battery lasts long enough. 10. They asked me if the sun would shine all day.