Knowing when and how to shift between formal and informal English is one of the most important skills in English communication. Using the wrong register — too casual in a job application or too stiff in everyday conversation — can create a poor impression.
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Knowing when and how to shift between formal and informal English is one of the most important skills in English communication. Using the wrong register — too casual in a job application or too stiff in everyday conversation — can create a poor impression.
This deck covers 25 key formal-informal word pairs, common contractions and their formal equivalents, informal phrasal verbs and their formal single-word alternatives, email and letter
openings and closings, and key grammatical differences between formal and informal writing. Essential for IELTS Academic writing, TOEFL, Cambridge B2/C1 writing tasks, university essays, and professional communication.
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"However," "nevertheless," or "nonetheless." Do not begin sentences with "But" in formal writing.
"Therefore," "consequently," "thus," or "as a result." Informal: "It rained, so we stayed in." Formal: "It rained; consequently, we remained indoors."
"Furthermore," "in addition," "moreover," or "additionally." Avoid starting formal sentences with "And."
"It is argued that," "evidence suggests that," "it appears that," or "this study contends that." Avoid first-person claims in academic writing.
"Significant," "substantial," "considerable," "extensive," or "large-scale." Context-dependent.
"Demonstrate," "indicate," "reveal," "illustrate," or "establish." Formal: "The data demonstrates a clear correlation."
"Assist," "facilitate," "aid," or "support." Informal: "This helps students learn." Formal: "This facilitates student learning."
"Attempt," "endeavour," "seek to," or "aim to." Formal: "The government seeks to reduce unemployment."
"Commence," "initiate," "introduce," or "instigate." Formal: "The programme will commence in September."
"Conclude," "terminate," "cease," or "discontinue." Formal: "Production has ceased at the facility."
"Sufficient," "adequate," or "ample." Formal: "The evidence is not sufficient to draw a conclusion."
"Utilise," "employ," "apply," or "implement." Formal: "This study employs a mixed-methods approach."
"Dear Mr/Ms/Dr [Surname]," (most formal). "Dear [Full Name]," (semi-formal). "To Whom It May Concern," (when recipient is unknown).
"Yours sincerely," (when you know the recipient's name). "Yours faithfully," (when recipient is unknown — "Dear Sir/Madam"). "Kind regards," (semi-formal).
Contractions are shortened forms using apostrophes: I'm, don't, can't, it's, they're. Avoid all contractions in formal writing and academic essays. Write the full forms: I am, do not, cannot, it is, they are.
"Could I...?" "Would it be possible to...?" "May I...?" "Can I have the report?" → "Could you please provide me with the report at your earliest convenience?"
Register is the level of formality in language — choosing appropriate vocabulary, grammar, and tone for a specific context (formal writing, casual conversation, academic essay, text message).
