1. Audience and purpose first, form second
Register is a way of speaking or writing suited to a particular situation, audience, and purpose. Formality is not a switch between correct and incorrect grammar. Much everyday English is neutral and suitable for several settings.
First ask: who will read or hear this, what should they understand or do, what relationships exist between the participants, and are there editorial requirements? A formal speech can be spoken and a friendly message written. The medium alone does not determine register.
The meeting starts at nine.
The meeting starts at nine.
This neutral full sentence suits both a colleague and a conference timetable. Active voice does not make it informal.
Could you send me the revised schedule?
Could you send me the revised schedule?
This polite request is suitable for a professional email. It does not need a passive or long noun phrases.
2. Passive voice controls focus, not prestige
The passive lets you make the object of an action the subject and topic of the message. It is useful when the object or procedure is the topic and the performer is unknown, obvious, or unimportant. Keep the performer with by when necessary. Passives also occur in conversation; active voice is perfectly normal in reports.
If the reader needs to know who is responsible for a decision, an agentless passive can hide necessary information. This is a content or transparency issue, not an automatic grammatical error. Do not invent a performer merely to obtain an active sentence.
The panel approved the design. ↔ The design was approved by the panel.
Three records were deleted overnight; the person responsible has not been identified.
Three records were deleted overnight; the person responsible has not been identified.
The passive honestly leaves the performer unknown. Adding the administrator would change the facts.
The facilities team will repair the lift on Thursday.
The facilities team will repair the lift on Thursday.
This direct active statement suits an official notice: both responsibility and timing are clear.
3. Nominalisation packages an action as a concept
Nominalisation names an action or property with a noun: decide → decision, approve → approval. It lets an event become the topic of the next thought, names a process concisely, or connects arguments. This presentation is common in formal writing.
Compression can come at the cost of losing the performer, time, or modality. The rejection of the proposal does not itself say who rejected it or when. If those facts matter, retain them in the sentence. A chain of abstract nouns is not a sign of C2 proficiency; an ordinary verb is sometimes more precise.
The panel’s approval of the design on Tuesday allowed work to begin on Friday.
The panel’s approval of the design on Tuesday allowed work to begin on Friday.
Approval names the event, but the performer, time, and relationship expressed by allowed remain. The sentence does not assert that work actually began.
We reviewed the application.
We reviewed the application.
For a short message, this is clearer than We carried out a review of the application. Both are grammatical; the purpose determines the choice.
4. Full forms and phrasal verbs: a tendency, not a ban
Contractions such as we’re and hasn’t often create a more conversational tone; full forms can maintain distance or make negation more prominent. However, a professional email need not avoid all contractions. Some editorial policies allow them and others restrict them: read the specific requirements.
Phrasal verbs often have more formal single-word counterparts, but not all are colloquial and not all replacements are exact. Fill in a form is natural in an instruction. Replace an expression according to meaning and the audience's needs, not simply because it has two words.
We haven’t received the attachment yet.
We haven’t received the attachment yet.
This is natural in a professional email unless contractions are prohibited. We have not received the attachment yet conveys the same fact with a full form.
Fill in the reference number on the form.
Fill in the reference number on the form.
This is a clear instruction with a phrasal verb. Fill in does not itself make the text unprofessional.
5. Subordination must show a real relationship
Subordinate clauses help distinguish condition, cause, time, and concession. However, because, after, if, and although express different relationships. A long sentence with subordination is not automatically more formal or precise than two short ones.
When changing register, check not only the facts but also their logical relationship. After expresses sequence but does not itself prove causation. Do not silently replace may with will or must. Do not turn permission to begin an action into a claim that it was performed.
The team revised the plan after the consultation ended.
The team revised the plan after the consultation ended.
This gives the event sequence. Because the consultation ended would add a causal explanation.
Although the room is small, it meets all our access requirements.
Although the room is small, it meets all our access requirements.
The concession can also be preserved with but. The conjunction should retain the contrast rather than create a cause.
6. Impersonality does not turn an opinion into evidence
It is estimated that… and The project is said to… background the author's personal voice. They can support a reporting tone, but the reader must still understand whether the content is an estimate, someone else's report, or an established fact.
If the estimate's source matters, name it: According to the maintenance team… or The maintenance team estimates… . Active attribution is often clearer. Making wording formal does not justify replacing is believed with is known or is proven.
The trial is said to be successful.
The trial is said to be successful.
This relays someone else's report, not the author's confirmation of success.
The maintenance team estimates that the repair will take two days.
The maintenance team estimates that the repair will take two days.
The active sentence suits a formal report and clearly identifies the forecast's source.
7. Formal wording can be simple and direct
Instructions for a broad audience should help people act. You/we, short sentences, and active voice may be the best choices even on an official website. For example, GOV.UK editorial guidance supports clear active wording and permits some contractions while restricting others. This is one institution's style, not a law for all English.
A grammatical expression can be hard to read or conflict with a specified editorial policy. Name the problem accurately. Deliberately combining tones is also possible, for example in a speech containing a quotation; here we only note that boundary rather than study every strategic register shift.
Send your reference number. You do not need to send the original document.
Send your reference number. You do not need to send the original document.
This is a direct official instruction without unnecessary nominalisation; the full negative is easy to notice.
The implementation of the revision of the procedure requires consideration.
The implementation of the revision of the procedure requires consideration.
The structure is possible, but the performers and concrete actions are hidden. Clear editing first requires facts, not automatic replacement of every noun with a verb.
8. An editor's checklist
Before paraphrasing, record who does what, when, how much or how many, what is negated, what is only possible, and how events are related. Then select a tone for the audience. Finally, compare the claims in both versions, not merely the words.
Open-ended responses here are checked against visible criteria and a model. The model is not the only correct answer, and self-checking does not certify general C2 proficiency. The main outcome is being able to change the form for a reason while remaining accurate.
We did not approve either application because the required documents were missing.
We did not approve either application because the required documents were missing.
Every register must retain we, the negation, the two applications, and the reason. A longer version must not lose those essentials.
Common mistakes
Incorrect:The application was approve by the panel.
Correct:The application was approved by the panel.
This is a genuine grammatical error: this passive requires the participle approved after was. An intended formal tone does not repair the verb structure.
Incorrect:The approval of the plans were delayed.
Correct:The approval of the plans was delayed.
This is a genuine agreement error: the head of the subject, approval, is singular; plural plans inside the noun phrase does not determine was.
Incorrect:It is estimated that the work may takes three days.
Correct:It is estimated that the work may take three days.
This is a genuine grammatical error: may requires the base form take. Do not remove may, because that would also change the degree of certainty.
Sources
- Cambridge English Grammar Today — Formal and informal language
- Cambridge English Grammar Today — Register
- Cambridge English Grammar Today — Nouns: forming nouns from other words
- Cambridge English Grammar Today — Passive: uses
- Cambridge English Grammar Today — Phrasal verbs and multi-word verbs
- GOV.UK — Use clear language (institution-specific editorial guidance)
- GOV.UK — Use the right tone (institution-specific editorial guidance)