Dialogue in English prose

Dialogue reads faster than description, and the eye jumps straight to the lines in quotation marks. It is also where an editor sees quickest whether you handle the conventions — and English gives you two house styles to keep straight, American and British, that differ in small things easy to miss.

The good news: Akapitly fixes most of this with one click (the Format button), and the US / UK switch decides which house style it follows. The catch: it is worth knowing what it actually changes — if only so you write it right the first time.

Quotation marks: American doubles, British singles

The two traditions split on the basics. American prose wraps speech in double curly quotes — “like this.” British prose has long used single curly quotes — ‘like this’ — with doubles reserved for a quote inside a quote. (Many British publishers now set doubles too, so if a house gives guidelines, follow them.)

Either way, use curly quotation marks, not the straight " " your keyboard types by default. Straight quotes are a typewriter relic; typeset prose curls them.

US: “I’ll be back before dark,” she said.
UK: ‘I’ll be back before dark,’ she said.

Punctuation: inside the quotes or outside

This is the difference a reader of the other dialect trips on. In American style, the comma and period always go inside the closing quotation mark, whether or not they belong to the quoted words.

US: “Wait,” he said. She only answered, “Fine.”

British style is more literal — sometimes called logical punctuation. The mark goes inside only if it is part of what was said; otherwise it sits outside.

UK: She called it ‘a mistake’. He asked, ‘Why now?’

Pick one system and hold it for the whole book. Mixing them mid-manuscript is the tell of a writer reading across both traditions without choosing.

Dialogue tags: lowercase, and the vanishing capital

A dialogue tag — he said, she replied, he murmured — names the speaker, and grammatically it hangs onto the line of speech rather than starting a fresh sentence. So the verb stays lowercase, even after a question mark or an exclamation mark.

“Will you be back?” she asked.

The surprise is the comma. When a tag follows a statement, the speech ends in a comma inside the quotes, not a period — the period would close a sentence that is not finished yet.

wrong: “I’ll be back.” he said. → right: “I’ll be back,” he said.

An action beat is different. If a full sentence about what the character does comes next, it keeps its own period and its own capital — it is a sentence, not a tag.

“I’ll be back.” He reached for his coat.

When speech breaks off: the dash

Use a dash when one line of speech is cut short — interrupted, or stopped hard. American style uses a closed em-dash (—) with no spaces around it; British style typically uses a spaced en-dash ( – ).

US: “I only wanted—”
UK: “I only wanted –”

Trailing off is not the same as being cut off. A voice that fades takes an ellipsis, not a dash.

“I thought you…”

English prose does not open a line of dialogue with a leading dash — that is a continental convention (Polish, French, Spanish), not an English one. English marks speech with quotation marks throughout.

A new paragraph for every speaker

Each time the speaker changes, start a new paragraph — even for a single word. This is the rule that lets a reader follow a fast exchange with almost no tags: the line breaks do the attributing.

“You’re late.”
“I know.”
“Again.”

An action beat by the speaker stays in their paragraph; when the floor passes, you break.

A character’s thoughts

Direct thought is set in italics or in quotation marks — both are correct. Choose one and keep it across the whole book, so the reader never has to wonder whether a character thought something or said it aloud. Modern prose leans toward italics, unquoted.

The ellipsis, ranges and a few small things

In dialogue the ellipsis carries a hung voice or a broken-off line, and it should be a single character — “…”, not three separate dots.

“I only wanted to…”

The most common mistakes

• straight " " quotes instead of curly ones;
• a period before the tag instead of a comma (“I’ll be back.” he said);
• a capital on the speech verb after ? or !;
• mixing American and British punctuation inside one manuscript;
• opening dialogue with a leading dash (a continental habit);
• switching between thought conventions partway through.

Most of this list disappears with one click of Format. The rest — capitals, and deciding where a sentence ends — stays on your side, because that is meaning, not punctuation.

For putting the whole thing into a finished file, see how to format a manuscript for submission; for not sounding like a bot, see when prose starts to sound like AI.