Missing question mark

Leaving off a question mark can change meaning, tone and the reader's ability to respond. Often the fix is one character: add "?". The key is knowing when to add it-direct vs indirect questions, tag questions, quoted questions and punctuation with parentheses or quotes.

Quick answer: when to use a question mark

Use a question mark for direct questions. Do not use one for indirect or reported questions. Tag questions and quoted questions take "?" at the end of the question portion.

Direct: use "?": "Are you coming?"
Indirect/reporting: no "?": "She asked when you were coming."
Tag question: end with "?": "You're coming, aren't you?"
Quoted question: put "?" inside quotes if the quoted material is the question: He asked, "Is this ready?"

Core rules: direct vs indirect questions (short and practical)

Direct questions request information or action and end with a question mark. Indirect questions are embedded in statements and end with a period.

Direct: often starts with who/what/where/when/why/how or an auxiliary (do/does/is/are/will). Example: "When does the meeting start?"
Indirect: follows verbs like ask, wonder, or is part of a larger sentence. Example: "She asked when the meeting starts."

Wrong|right: Incorrect: "What time is the match"
Correct: "What time is the match?"
Wrong|right: Incorrect: "I asked what time the match starts?"
Correct: "I asked what time the match starts."
Wrong|right: Incorrect: "Will you join us"
Correct: "Will you join us?"

Tag questions, quotes and embedded clauses (common traps)

Tag questions attach a short question to a statement; the whole sentence ends with a question mark and usually a comma before the tag. For quoted questions, the question mark belongs to the quoted material. If the quote is a statement but the whole sentence is a question, place the question mark outside the quotes.

Tag pattern: statement, tag? - "We're leaving, aren't we?"
Quoted question: He asked, "Can you help?"
Quote-statement inside a direct question: Did she say, "I'm ready"?

Wrong|right: Incorrect: "You're coming, aren't you."
Correct: "You're coming, aren't you?"
Wrong|right: Incorrect: He asked, "Will you attend the workshop"
Correct: He asked, "Will you attend the workshop?"
Wrong|right: Incorrect: Did she say, "I'm ready."?
Correct: Did she say, "I'm ready"?

Spacing and typography: the exact spot for "?"

Place the question mark immediately after the last character with no space before it and a space after if another sentence follows. Inside parentheses, the question mark goes before the closing parenthesis if the parenthetical is the question.

Correct: "When is lunch?" Not: "When is lunch ?"
Parentheses: "Who won the award (do you know)?" - if the parenthetical is the question, put the "?" before the ")".

Wrong|right: Incorrect: "What time is it ?"
Correct: "What time is it?"
Wrong|right: Incorrect: "(Are we meeting later)"
Correct: "(Are we meeting later?)"

Hyphenation note (quick)

Hyphens don't affect whether a sentence needs a question mark. Keep hyphenation clear in compound words and headlines, and still end the question with "?" if it's a direct question.

Headline question: "Well-being at Work: Are We Doing Enough?"
Compound adjective: "Is low-risk investment safe?" - hyphenation doesn't change the need for "?"

General: Incorrect: "Long-term plan?" (ambiguous)
Correct: "Is the long-term plan ready?"

Grammar details that matter (inversion, modals and polite requests)

Use "?" with auxiliary inversion (Do/Did/Is/Are/Will + subject) and with question words (what/when/how). Polite requests framed as questions also take a question mark.

Auxiliary inversion: "Did you finish the report?"
Question word + clause: "How did you solve it?"
Polite request: "Could you send that by 5 p.m.?"

Wrong|right: Incorrect: "Could you review this by Monday."
Correct: "Could you review this by Monday?"
Wrong|right: Incorrect: "Why you left early"
Correct: "Why did you leave early?"

Try your own sentence

Test the whole sentence, not just a phrase. Context usually makes whether to use "?" obvious.

Real usage and tone: how "?" changes voice at work, school and casual contexts

Full questions suit professional and academic contexts. In casual chat, dropped punctuation or a period instead of "?" alters tone-surprise, skepticism, or bluntness.

Work: complete sentence + "?" keeps tone neutral and polite.
School: clear questions help graders and classmates understand prompts.
Casual: short or one-word questions rely on "?" for tone ("Really?" vs "Really.").

Work:
Incorrect: "Are you able to present Friday"
Correct: "Are you able to present Friday?"
Work:
Incorrect: "Will the client approve the proposal"
Correct: "Will the client approve the proposal?"
School:
Incorrect: "What evidence supports your claim"
Correct: "What evidence supports your claim?"
School:
Incorrect: "Do we need to cite more sources"
Correct: "Do we need to cite more sources?"
Casual:
Incorrect: "Coming tonight"
Correct: "Coming tonight?"
Casual:
Incorrect: "You're serious"
Correct: "You're serious?"

Examples and practice: more wrong → right pairs (copy these patterns)

Use these pairs as templates when fixing your own sentences.

Work examples:
Incorrect: "Can you share the updated budget"
Correct: "Can you share the updated budget?"
Incorrect: "Who will lead the demo"
Correct: "Who will lead the demo?"
Incorrect: "Is the report finalized"
Correct: "Is the report finalized?"
School examples:
Incorrect: "When is the paper due"
Correct: "When is the paper due?"
Incorrect: "How should we format the bibliography"
Correct: "How should we format the bibliography?"
Incorrect: "Who wants to lead the presentation"
Correct: "Who wants to lead the presentation?"
Casual examples:
Incorrect: "You coming to dinner"
Correct: "You coming to dinner?"
Incorrect: "Want to watch a movie"
Correct: "Want to watch a movie?"
Incorrect: "Where are we meeting later"
Correct: "Where are we meeting later?"
General practice:
Incorrect: "I wonder who left the door open?"
Correct: "I wonder who left the door open."
Incorrect: "She asked, "When will you return.""
Correct: "She asked, "When will you return?"

Fix your sentence: quick checklist and rewrite templates

Checklist: 1) Is this a direct question someone can answer? 2) Does it start with a question word or auxiliary? 3) Is it a tag or quoted question? If yes to 1 or 3, add "?". If it's an indirect report, use a period.

Editing pass: scan sentence endings only - clauses that sound like a question should end with "?"
Read aloud: rising intonation = question = add "?"

Rewrite:
Wrong: "Can you send the figures by noon" Rewrites: Professional: "Could you please send the figures by noon?" Neutral/
Casual: "Can you send the figures by noon?"
Rewrite:
Wrong: "What chapter do we need to read" Rewrites:
Formal: "Which chapter should we read for Friday's discussion?" Direct: "What chapter do we need to read?"
Rewrite:
Wrong: "You coming to the meeting" Rewrites: Polite: "Will you be joining the meeting?" Short/
casual: "You coming to the meeting?"
Rewrite:
Wrong: "Do we add more sources" Rewrites: Academic: "Should we include additional sources in the literature review?"
Casual: "Do we add more sources?"
Rewrite:
Wrong: "Who took the key" Rewrites: Neutral: "Who took the key?" Firm (work): "Who removed the key from the desk?"

Memory tricks and editing tactics so you stop missing "?"

Two quick habits: read sentence endings aloud (if your voice rises, add "?"), and scan for question words or auxiliaries. Do a one-line punctuation sweep before sending: check only sentence-ending characters.

Rising intonation? Put a "?"
Starts with who/what/when/where/why/how or an auxiliary? Check for "?"
Final check: search or visually scan for lines that end with a letter and no punctuation, and fix obvious questions.

General: Incorrect: "Are you available tomorrow"
Correct: "Are you available tomorrow?"
Tip: Before sending an email, scan subject lines and opening sentences - they often miss the question mark.

Similar mistakes to watch for (related punctuation errors)

Fixing a missing question mark often reveals other punctuation issues: commas with tag questions, misplaced quotation marks, or using a period where "!" or "?! " fits better.

Use "?!": "What were you thinking." → "What were you thinking?!"
Add comma before a tag: "You're joining aren't you" → "You're joining, aren't you?"
Place "?" correctly with quotes: wrong: Did he say, "I can't"? -
correct: Did he say, "I can't"?

Wrong|right: Incorrect: "Who wants coffee."
Correct: "Who wants coffee?"
Wrong|right: Incorrect: "You will come won't you"
Correct: "You will come, won't you?"

FAQ

Do questions always need a question mark?

Direct questions need a question mark. Indirect or reported questions embedded in statements do not. If you're directly asking someone for information or action, use "?"

Can an indirect question end with a question mark?

No. Indirect questions are part of a statement and end with a period: "She asked when the meeting starts." If the whole sentence is a direct question that contains quoted indirect material, the direct question uses "?"

Should tag questions have a question mark or a period?

Tag questions end with a question mark and usually include a comma before the tag: "You're coming, aren't you?"

Is there ever a space before a question mark?

Not in English typography. Put the question mark immediately after the last character with no space before it and a space after if another sentence follows.

How do I punctuate a question inside quotation marks?

If the quoted material itself is a question, place the question mark inside the quotation marks: He asked, "Are you ready?" If the quote is a statement but the whole sentence is a question, place the "?" outside: Did she say, "I'm ready"?

Want a quick check before you send it?

If you're unsure whether a sentence needs a question mark, read it aloud focusing on the final word, then run a quick punctuation sweep. Use the rewrite templates above to match tone, and fix any lines that end with no punctuation or the wrong mark.

A quick checker can catch missing question marks and show whether a clause is direct or indirect-handy before important emails, submissions or posts.