AUXILIARES PARA NEGAR Y PREGUNTAR EN INGLÉS

🎯 INTRODUCCIÓN: ¿Por qué son especiales estos auxiliares?

En español, para negar solo decimos "no" antes del verbo, y para preguntar solo cambiamos la entonación. Pero en inglés NO funciona así. El inglés necesita auxiliares para:

Negar: agregar not al auxiliar
Preguntar: invertir el orden (auxiliar + sujeto + verbo)

Los 3 auxiliares clave para negar y preguntar son:

DO / DOES  →  presente simple
DID        →  pasado simple
BE         →  continuos y pasiva

Y además los modales (can, will, should, etc.) que también se comportan como auxiliares.

📖 MÓDULO 1: LA REGLA DE ORO

🔹 1.1 La fórmula mágica

NEGACIÓN:

Sujeto + AUXILIAR + not + verbo principal (forma base)

PREGUNTA:

AUXILIAR + Sujeto + verbo principal (forma base)?

🔹 1.2 ¿Qué auxiliar uso según el tiempo?

Tiempo verbal	Auxiliar para negar/preguntar
Presente simple (I/you/we/they)	do / don't
Presente simple (he/she/it)	does / doesn't
Pasado simple (todos)	did / didn't
Presente continuo	am/is/are
Pasado continuo	was/were
Futuro	will / won't
Presente perfecto	have/has
Pasado perfecto	had
Modales	can, could, should, must...

📖 MÓDULO 2: NEGAR Y PREGUNTAR EN PRESENTE SIMPLE

🔹 2.1 Negación con DO / DOES

Fórmula: Sujeto + don't/doesn't + verbo base

Sujeto	Auxiliar	Ejemplo
I / You / We / They	don't	I don't like coffee
He / She / It	doesn't	She doesn't work here

⚠️ Regla crítica: El verbo principal pierde la -s cuando usas doesn't.

❌ She doesn't works
✅ She doesn't work

🔹 2.2 Preguntas con DO / DOES

Fórmula: Do/Does + sujeto + verbo base?

Pregunta	Respuesta corta
Do you speak English?	Yes, I do / No, I don't
Does she live here?	Yes, she does / No, she doesn't
Do they like pizza?	Yes, they do / No, they don't

🔹 2.3 Preguntas WH- con DO/DOES

Las question words (what, where, when, why, who, how) van antes del auxiliar:

WH-	+ Auxiliar	+ Sujeto	+ Verbo	Ejemplo
Where	do	you	live?	Where do you live?
What	does	she	want?	What does she want?
Why	do	they	study?	Why do they study?
How often	does	he	run?	How often does he run?

📖 MÓDULO 3: NEGAR Y PREGUNTAR EN PASADO SIMPLE

🔹 3.1 Negación con DID

Fórmula: Sujeto + didn't + verbo base

Ejemplo	Significado
I didn't go	No fui
She didn't call	Ella no llamó
They didn't come	Ellos no vinieron

⚠️ Regla crítica: El verbo principal va en forma base, NO en pasado.

❌ I didn't went
✅ I didn't go

🔹 3.2 Preguntas con DID

Fórmula: Did + sujeto + verbo base?

Pregunta	Respuesta corta
Did you see the movie?	Yes, I did / No, I didn't
Did she call you?	Yes, she did / No, she didn't
Did they arrive?	Yes, they did / No, they didn't

🔹 3.3 Preguntas WH- con DID

WH-	+ Did	+ Sujeto	+ Verbo	Ejemplo
Where	did	you	go?	Where did you go?
What	did	she	say?	What did she say?
When	did	they	leave?	When did they leave?

📖 MÓDULO 4: NEGAR Y PREGUNTAR CON BE

🔹 4.1 BE no necesita DO

BE es su propio auxiliar. Nunca usas do/does/did con BE.

❌ Incorrecto	✅ Correcto
I don't am tired	I am not tired
Do you are happy?	Are you happy?
Did she was here?	Was she here?

🔹 4.2 Negación con BE

Fórmula: Sujeto + BE + not

Tiempo	Ejemplo
Presente	I am not tired / She isn't here / They aren't ready
Pasado	I wasn't there / They weren't home
Futuro	I won't be late

🔹 4.3 Preguntas con BE

Fórmula: BE + sujeto + ...?

Tiempo	Pregunta	Respuesta corta
Presente	Are you ok?	Yes, I am / No, I'm not
Presente	Is she a doctor?	Yes, she is / No, she isn't
Pasado	Was he at home?	Yes, he was / No, he wasn't
Pasado	Were they happy?	Yes, they were / No, they weren't

🔹 4.4 BE en tiempos continuos

Presente continuo:

Negación: I am not working
Pregunta: Are you working?

Pasado continuo:

Negación: She wasn't sleeping
Pregunta: Were they sleeping?

📖 MÓDULO 5: NEGAR Y PREGUNTAR CON MODALES

🔹 5.1 Reglas de los modales

No necesitan do/does/did
No cambian de forma (sin -s, sin -ed)
Van seguidos de verbo base
Negación: modal + not (contracción)
Pregunta: modal + sujeto + verbo

🔹 5.2 Tabla de modales

Modal	Negación	Pregunta	Ejemplo
can	can't / cannot	Can...?	Can you swim? / I can't swim
could	couldn't	Could...?	Could you help me?
will	won't	Will...?	Will you come?
would	wouldn't	Would...?	Would you like tea?
should	shouldn't	Should...?	Should I go?
must	mustn't	Must...?	Must I stay?
may	may not	May...?	May I come in?
might	might not	Might...?	Might it rain?

🔹 5.3 WH- con modales

WH-	+ Modal	+ Sujeto	+ Verbo	Ejemplo
Where	can	I	park?	Where can I park?
What	should	we	do?	What should we do?
When	will	she	arrive?	When will she arrive?

📖 MÓDULO 6: NEGAR Y PREGUNTAR EN TIEMPOS PERFECTOS

🔹 6.1 Presente perfecto (have/has)

Negación: Sujeto + haven't/hasn't + participio

I haven't seen it.
She hasn't arrived.

Pregunta: Have/Has + sujeto + participio?

Have you ever been to Paris?
Has she finished?

🔹 6.2 Pasado perfecto (had)

Negación: Sujeto + hadn't + participio

They hadn't left yet.

Pregunta: Had + sujeto + participio?

Had you seen it before?

🔹 6.3 Futuro perfecto (will have)

Negación: Sujeto + won't have + participio

I won't have finished by then.

Pregunta: Will + sujeto + have + participio?

Will you have finished by 8?

📖 MÓDULO 7: RESPUESTAS CORTAS (Short Answers)

🔹 7.1 La regla

En inglés NO se responde solo con "yes" o "no". Se repite el auxiliar.

Pregunta	✅ Correcto	❌ Incorrecto
Do you like it?	Yes, I do	Yes
Can she swim?	No, she can't	No
Are you tired?	Yes, I am	Yes
Did they come?	No, they didn't	No
Have you seen it?	Yes, I have	Yes

🔹 7.2 Tabla de respuestas cortas

Pregunta con...	Respuesta afirmativa	Respuesta negativa
Do...?	Yes, I do	No, I don't
Does...?	Yes, she does	No, she doesn't
Did...?	Yes, we did	No, we didn't
Am/Is/Are...?	Yes, I am	No, I'm not
Was/Were...?	Yes, he was	No, he wasn't
Can...?	Yes, I can	No, I can't
Will...?	Yes, they will	No, they won't
Have/Has...?	Yes, I have	No, I haven't

📖 MÓDULO 8: ERRORES COMUNES

❌ Error	✅ Correcto	Razón
She don't like it	She doesn't like it	3ª persona usa does
Do he play soccer?	Does he play soccer?	3ª persona usa does
I didn't went	I didn't go	Después de did, verbo base
Does she works?	Does she work?	Después de does, sin -s
I don't am happy	I am not happy	BE no usa do
Do you can swim?	Can you swim?	Modales no usan do
Yes, I like	Yes, I do	Respuesta corta con auxiliar
Where you go?	Where do you go?	Falta el auxiliar
Why she cried?	Why did she cry?	Falta el auxiliar did

📖 MÓDULO 9: PRÁCTICA GUIADA

✏️ Ejercicio 1: Convierte a negación

I like coffee. → I don't like coffee.
She works here. → She doesn't work here.
They went to Paris. → They didn't go to Paris.
He is tired. → He isn't tired.
We can help. → We can't help.
You have finished. → You haven't finished.

✏️ Ejercicio 2: Convierte a pregunta

You speak French. → Do you speak French?
She lives in London. → Does she live in London?
They arrived early. → Did they arrive early?
He is a teacher. → Is he a teacher?
You can drive. → Can you drive?
She has eaten. → Has she eaten?

✏️ Ejercicio 3: Completa con el auxiliar correcto

___ you like pizza? → Do
She ___ not come yesterday. → did
___ he working now? → Is
They ___ finished the project. → have
___ I open the window? → Can/May/Shall
Where ___ you go last weekend? → did
Why ___ she crying? → is
___ you ever been to Japan? → Have

✏️ Ejercicio 4: Corrige el error

Does she likes music? → Does she like music?
I didn't saw him. → I didn't see him.
Do you are ready? → Are you ready?
Yes, I like. → Yes, I do.
Where you live? → Where do you live?
She don't want to go. → She doesn't want to go.

✏️ Ejercicio 5: Responde corto

Do you like tea? → Yes, I do / No, I don't
Can she swim? → Yes, she can / No, she can't
Did they call? → Yes, they did / No, they didn't
Are you busy? → Yes, I am / No, I'm not
Have you seen it? → Yes, I have / No, I haven't

📖 MÓDULO 10: RESUMEN VISUAL

NEGAR Y PREGUNTAR EN INGLÉS
│
├── PRESENTE SIMPLE
│   ├── I/You/We/They → do / don't
│   └── He/She/It → does / doesn't
│
├── PASADO SIMPLE
│   └── Todos → did / didn't
│
├── BE (am/is/are/was/were)
│   └── No usa do/does/did, se invierte solo
│
├── MODALES (can, will, should...)
│   └── No usan do/does/did, se invierten solos
│
├── PERFECTOS (have/has/had)
│   └── Se invierten directamente
│
└── REGLA DE ORO:
    ├── Negar = auxiliar + not + verbo base
    └── Preguntar = auxiliar + sujeto + verbo base

🎓 EXAMEN FINAL

¿Qué auxiliar usas para negar en presente simple con "she"? → Doesn't
¿Qué auxiliar usas para preguntar en pasado simple? → Did
¿Cómo se dice "¿Eres feliz?" → Are you happy?
¿Cómo se dice "No puedo ir"? → I can't go.
¿Cuál es la respuesta corta a "Do you like it?" (afirmativa)? → Yes, I do.
¿Qué error hay en "She don't work"? → Debe ser doesn't (3ª persona).
¿Qué error hay en "Did you went?" → Debe ser go (verbo base después de did).
Completa: Where ___ she live? → does

💡 CONSEJOS FINALES

Identifica primero el tiempo verbal de la oración; eso te dice qué auxiliar usar.
Nunca uses do/does/did con BE ni con modales; ellos se invierten solos.
Después de do/does/did, el verbo siempre va en forma base.
Aprende las contracciones: don't, doesn't, didn't, isn't, aren't, wasn't, weren't, can't, won't, haven't, hasn't.
Practica con preguntas reales: pregúntate cosas a ti mismo en inglés cada día.
Las respuestas cortas siempre repiten el auxiliar. No basta con "yes" o "no".

¿Quieres que profundice en algún módulo, te prepare más ejercicios con respuestas, o cree un curso sobre preguntas indirectas (embedded questions) o question tags (¿no es así?) que también usan auxiliares