Voz Pasiva con Verbos Modales (puede ser hecho)
modal + be + V3. Podrás expresar posibilidades, obligaciones y consejos de forma fluida.
Grammar Rule in 30 Seconds
Use modal passives to focus on what needs to happen rather than who is doing it.
- Combine a modal (can, must, should) with 'be' and a past participle: 'It can be fixed.'
- For negatives, place 'not' immediately after the modal: 'It cannot be fixed.'
- In questions, move the modal to the front: 'Can it be fixed?'
Overview
Your order can be tracked en lugar de We are tracking your order? Bienvenido al mundo de la voz pasiva con verbos modales. Suena elegante, suena oficial, pero en realidad es solo una forma de cambiar el enfoque.can, must o should, añadimos matices de posibilidad, necesidad o consejo.How This Grammar Works
Tú (héroe) debes firmar (acción) el contrato (objetivo). Pero, ¿y si el contrato es la estrella? Ahí entra la voz pasiva.be como puente. Finalmente, el participio pasado (V3) completa la acción. Es un trabajo en equipo donde cada palabra tiene su función.Puedo arreglar esto y Esto puede ser arreglado. Uno habla de tu habilidad; el otro, de la solución.
Formation Pattern
can, must, should, etc.).
be (¡nunca cambia!).
done, seen, written).
The file (Sujeto) + should (Modal) + be (puente) + uploaded (V3).
not después del modal: The file should not be uploaded. Para preguntas, mueve el modal al frente: Should the file be uploaded? Es como un juego de LEGO; solo encaja las piezas en el orden correcto.
When To Use It
- Reglas Oficiales:
Masks must be worn inside.(No importa quién lo diga, solo ponte la mascarilla). - Instrucciones:
The battery should be charged for 2 hours. - Apps y Redes:
Your password can be reset here. - Consejos Educados:
This mistake could be avoided.(Suena mejor que culpar a alguien directamente). - Escritura Formal:
The results will be published next week.
Common Mistakes
- Olvidar el
be: Muchos dicenThe door must closed.¡Error! Necesitas el puente:The door must be closed. - Usar la forma incorrecta del verbo: No uses el infinitivo. Siempre es el participio:
It can be fixed(nofix). - Confusión con
to: Modales comocanomustnunca llevanto. Nada deIt must to be done. - Confusión de Sujeto:
You can be sent the emailsignifica que te enviarán a ti por correo. Lo correcto esThe email can be sent to you.
be y asegura tu V3.Contrast With Similar Patterns
- Pasiva Normal:
The cake is eaten.(Hecho presente). - Pasiva Modal:
The cake can be eaten.(Posibilidad/Permiso). - Modal Activa:
You can eat the cake.(Enfoque en ti y tu hambre).
will es una promesa, must es una orden estricta. Elige tu modal como eliges tu playlist: define el ambiente.Quick FAQ
¿Puedo usar by para decir quién lo hizo?
¡Sí! The song was written by Taylor Swift. Pero solemos omitirlo si el autor no es importante.
¿Es solo para escritura formal?
No, se usa mucho en casa: This needs to be cleaned (dicho con un suspiro).
¿can be siempre es permiso?
No, también es posibilidad: It can be cold in London.
¿Cuál es el modal más común?
Should y must para reglas; can para tecnología; could para sugerencias amables.
¿Sirve para entrevistas de trabajo?
¡Claro! My skills can be applied to this role te hace sonar muy profesional.
¿Todos los verbos funcionan?
No, verbos como happen o arrive no tienen objetos, así que no pueden ser pasivos.
2. Negative Contractions
| Full Form | Contraction | Usage |
|---|---|---|
|
cannot be
|
can't be
|
Common
|
|
should not be
|
shouldn't be
|
Common
|
|
must not be
|
mustn't be
|
Common (Prohibition)
|
|
could not be
|
couldn't be
|
Common
|
|
might not be
|
mightn't be
|
Rare
|
Modal Passive Structure
| Subject (Object) | Modal Verb | Auxiliary | Past Participle (V3) | Example |
|---|---|---|---|---|
|
The work
|
can
|
be
|
done
|
The work can be done.
|
|
The work
|
must
|
be
|
done
|
The work must be done.
|
|
The work
|
should
|
be
|
done
|
The work should be done.
|
|
The work
|
might
|
be
|
done
|
The work might be done.
|
|
The work
|
could
|
be
|
done
|
The work could be done.
|
|
The work
|
may
|
be
|
done
|
The work may be done.
|
Meanings
A grammatical construction used to express necessity, possibility, or permission regarding an object when the agent (the person doing the action) is unknown, unimportant, or obvious.
Possibility and Ability
Expressing that something is possible or that an object has the potential to be acted upon.
“The stars can be seen clearly tonight.”
“This problem could be solved with more time.”
Obligation and Necessity
Expressing that an action is required or mandatory for an object.
“Seatbelts must be worn at all times.”
“The bill has to be paid by Friday.”
Advice and Suggestions
Giving recommendations about what should happen to an object.
“The fruit should be washed before eating.”
“The room ought to be painted blue.”
Reference Table
| Modal | Ejemplo en Voz Activa | Ejemplo en Voz Pasiva | Significado |
|---|---|---|---|
|
can
|
You can fix this.
|
This `can be fixed`.
|
Posibilidad/Habilidad
|
|
could
|
They could repair it.
|
It `could be repaired`.
|
Posibilidad pasada/Sugerencia
|
|
should
|
You should finish the report.
|
The report `should be finished`.
|
Consejo/Recomendación
|
|
must
|
We must submit the form.
|
The form `must be submitted`.
|
Obligación/Necesidad
|
|
may
|
Someone may deliver the package.
|
The package `may be delivered`.
|
Posibilidad formal
|
|
might
|
They might close the store.
|
The store `might be closed`.
|
Posibilidad incierta
|
|
will
|
The team will announce the news.
|
The news `will be announced`.
|
Acción futura (cierta)
|
|
ought to
|
You ought to review the rules.
|
The rules `ought to be reviewed`.
|
Consejo fuerte/Recomendación
|
Espectro de formalidad
The assignment must be completed by the end of the business day. (Workplace)
The work should be finished today. (Workplace)
This needs to be done ASAP. (Workplace)
Get this finished, yeah? (Workplace)
Voz Pasiva con Verbos Modales
Modales Comunes
- can posibilidad/habilidad
- should consejo/recomendación
- must obligación/necesidad
- might/may posibilidad incierta
Usos Clave
- Unknown agent ¿Quién lo hizo? ¡No importa!
- Object focus ¿Qué pasó? (a algo)
- Formal tone Anuncios oficiales, reglas
- Polite suggestions Consejos amables
Pasos de Formación
- Sujeto (receptor)
- Modal (can, should, etc.)
- be (siempre 'be')
- V3 (participio pasado)
Activa vs. Pasiva con Modales
¿Cuándo usar Modal + Pasiva?
¿Se conoce o es importante quien realiza la acción ('doer')?
¿Quieres enfatizar la acción o su resultado?
¿Estás dando un consejo o instrucciones generales?
¿Se desea cortesía o formalidad?
Pasiva Modal: Expresando Diferentes Significados
Posibilidad/Habilidad
- • `can be found`
- • `could be done`
- • `may be seen`
Obligación/Necesidad
- • `must be submitted`
- • `should be completed`
- • `has to be approved`
Consejo/Recomendación
- • `should be reviewed`
- • `ought to be improved`
- • `could be considered`
Prohibición/Imposibilidad
- • `cannot be entered`
- • `must not be touched`
- • `should not be ignored`
Ejemplos por nivel
It can be done.
It can be done.
The door must be closed.
The door must be closed.
Can it be fixed?
Can it be fixed?
The food should be hot.
The food should be hot.
The homework must be finished today.
The homework must be finished today.
The windows should be opened.
The windows should be opened.
This book can be borrowed from the library.
This book can be borrowed from the library.
The car cannot be parked here.
The car cannot be parked here.
The package might be delivered tomorrow.
The package might be delivered tomorrow.
All applications must be submitted online.
All applications must be submitted online.
The meeting could be cancelled due to the storm.
The meeting could be cancelled due to the storm.
Should the medicine be taken with food?
Should the medicine be taken with food?
The results will be published once the data has been verified.
The results will be published once the data has been verified.
Safety regulations must be strictly adhered to.
Safety regulations must be strictly adhered to.
The project ought to be completed by the end of the quarter.
The project ought to be completed by the end of the quarter.
Can any improvements be made to the current system?
Can any improvements be made to the current system?
The implications of this policy must be carefully considered.
The implications of this policy must be carefully considered.
It could be argued that the economy is recovering.
It could be argued that the economy is recovering.
The manuscript may be viewed only with special permission.
The manuscript may be viewed only with special permission.
Such behavior will not be tolerated in this establishment.
Such behavior will not be tolerated in this establishment.
The gravity of the situation can hardly be overstated.
The gravity of the situation can hardly be overstated.
Provision must be made for future contingencies.
Provision must be made for future contingencies.
The nuances of the text might be lost in translation.
The nuances of the text might be lost in translation.
It is imperative that the confidentiality of the source be maintained.
It is imperative that the confidentiality of the source be maintained.
Fácil de confundir
Learners often use the active form when they mean the passive, or vice versa.
Learners forget to add the modal when they want to express necessity.
Learners try to use 'get' with modals in formal writing.
Errores comunes
It can done.
It can be done.
It must be do.
It must be done.
Can be fixed it?
Can it be fixed?
It can is done.
It can be done.
The car should be wash.
The car should be washed.
It must not be open.
It must not be opened.
Should be the door locked?
Should the door be locked?
The bill has to be pay.
The bill has to be paid.
It might be being done.
It might be done.
The work can be finish by me.
The work can be finished by me.
It must be being considered.
It must be considered.
The law should be obey.
The law should be obeyed.
Patrones de oraciones
The ___ must be ___ by ___.
It can be ___ easily.
Should the ___ be ___?
This might be ___ as a ___.
Real World Usage
All liquids must be placed in a clear plastic bag.
The shelf should be attached to the wall.
The invoice can be found in the attachment.
Your account might be suspended if you violate the rules.
The dough should be left to rise for an hour.
A new trade deal could be signed by Friday.
Enfócate en quién recibe la acción
The new rules will be announced soon.
¡No olvides el 'be'!
must be eaten'. ¡Siempre revisa que esté ese pequeño 'be'! The car should be washed.
Potenciador de cortesía y formalidad
must be completed'. Es genial para emails de trabajo, instrucciones, o cuando quieres evitar dar órdenes directas. The form must be filled out.
¡El inglés de noticias y académico lo adora!
The new policy will be implemented.
Revisa tus formas de V3
The report should be written.
Smart Tips
Use 'could be' or 'might be' instead of 'you should'. It sounds less like you are giving orders.
Check if the subject is 'doing' the action. If not, insert 'be' and change the verb to V3.
Remember that 'must not be' means it is forbidden, not that it isn't necessary.
Think of the modal and 'be' as a sandwich, with the subject as the filling.
Pronunciación
Weak 'be'
In the phrase 'can be done', the word 'be' is usually unstressed and very short.
Modal Stress
Modals like 'must' or 'should' are often stressed to emphasize the necessity or advice.
Rising intonation for questions
Can it be fixed? ↗
Asking for confirmation or possibility.
Memorízalo
Mnemotecnia
Remember 'MBP': Modal, Be, Participle. It's the 'Most Beautiful Pattern'!
Asociación visual
Imagine a giant robot (the Modal) holding a small bee (be) that is painting a finished checkmark (the Past Participle) on a box.
Rhyme
If a modal is what you see, just add a 'be' and a V3!
Story
A king (Modal) orders a servant (be) to complete a task (V3). The king doesn't care who the servant is, only that the task is 'done'.
Word Web
Desafío
Look around your room and find 3 things that 'must be done' (e.g., 'The bed must be made'). Write them down.
Notas culturales
British speakers often use 'ought to be' more frequently than Americans in formal advice.
Passive modals are used to avoid direct blame. Instead of 'You must fix this', a manager says 'This must be fixed' to sound less aggressive.
Public signs in English-speaking countries rely heavily on 'must be' and 'shall be' for authority.
Modal verbs in English come from Old English 'preterite-present' verbs, which originally had different meanings (e.g., 'can' meant 'to know'). The passive construction 'be + past participle' developed later as a way to express the patient of an action.
Inicios de conversación
What is one thing in your city that should be improved?
Can your favorite dish be made at home?
What rules must be followed in your office or school?
Do you think a human colony could be built on Mars?
Temas para diario
Errores comunes
Test Yourself
The report ______ by noon.
Find and fix the mistake:
The instructions should follow carefully.
Elige la oración correcta:
Arrange the words in the correct order:
All words placed
Click words above to build the sentence
Score: /4
Ejercicios de practica
8 exercisesThe car ___ ___ ___ (must / repair) today.
Find and fix the mistake:
The documents can be send by email.
The windows ___ every month.
The contract ___ ___ ___.
'The problem could be solved.'
A: Can I take this book? B: No, it ___ ___ ___ to the library.
be / the / should / lights / off / turned
1. Must be done, 2. Might be done, 3. Should be done
Score: /8
Practice Bank
12 exercisesThe email ______ before sending.
New ideas must considering for the next phase.
Elige la oración correcta:
Translate into English: 'El software puede ser actualizado esta noche.'
Ordena estas palabras para formar una oración:
Empareja las frases:
The message ______ immediately.
The documents can signed here.
Elige la oración correcta:
Translate into English: 'No se debe tocar el objeto de arte.'
Ordena estas palabras para formar una oración:
Empareja la voz activa con la voz pasiva:
Score: /12
Preguntas frecuentes (8)
Yes, but only in informal speech. For example, `It might get broken` is okay with friends, but in an essay, use `It might be broken`.
They follow the same rule: `The bill has to be paid` or `The law ought to be obeyed`. Just add `be + V3` after the 'to'.
Not always, but it is *more* formal than the active voice. We use it in daily life for rules and instructions.
Move the modal to the front: `Can it be done?` or `Should the room be painted?`. The `be` stays after the subject.
Yes! `The work can be done by a professional.` However, we usually use the passive when the person isn't important.
It is `must not be` (prohibition) or `doesn't have to be` (lack of necessity). Be careful with the meaning shift!
Yes! `The package will be delivered tomorrow.` It follows the exact same pattern as other modals.
Because modal verbs are always followed by the base form of a verb. The base form of 'is/am/are' is `be`.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Se puede / Debe ser
English always uses 'be', while Spanish often uses the reflexive 'se'.
Peut être / Doit être
French past participles must agree in gender and number with the subject, unlike English.
Kann ... werden
German uses 'werden' instead of 'be' and has different word order.
〜れる / 〜られる
Japanese is morphological (verb endings) while English is periphrastic (auxiliary verbs).
Passive Voice (Internal Vowels)
Arabic uses vowel changes; English uses auxiliary verbs.
被 (bèi) + Modal
Chinese has no verb conjugation or 'be' auxiliary in this context.
Learning Path
Prerequisites
Learn These First
Voz Pasiva: Formación Básica (be + V3)
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