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Reporting Verbs for Citing Sources: Neutral, Tentative, and Strong-Claim Verbs

The three-tier taxonomy of reporting verbs (neutral, tentative, strong-claim) used to attribute claims to cited sources accurately, with common mismatches to avoid.

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When a writer attributes a claim to a source — “Smith argues that…”, “the data suggest…”, “the report notes…” — the verb chosen isn’t a neutral placeholder. It’s a claim about how confidently the source itself made that statement. A reporting verb is the verb that introduces a paraphrase, summary, or quotation from a source, and academic-writing pedagogy conventionally sorts these verbs into tiers by how much certainty or argumentative force they attribute to the source: neutral verbs that simply report, tentative verbs that signal the source itself was cautious, and strong-claim verbs that signal the source asserted something firmly. Choosing the wrong tier misrepresents the source, regardless of how accurate the surrounding paraphrase is.

This is a narrower question than hedging your own claims (covered in CASRAI’s guide to hedging in academic writing) or signaling a transition in your argument (covered in CASRAI’s guide to discourse markers for introducing a research gap). Reporting-verb choice is specifically about accurately representing someone else’s certainty level when you cite them — a distinct skill that sits at the sentence level, every time a citation appears.

Why reporting-verb choice matters

A citation does two things at once: it points to a source, and it characterizes what that source said. The reporting verb carries the second job. If a source writes “these results may indicate an association” and a writer paraphrases this as “Smith proves an association exists,” the citation is technically attached to the right source, but the claim attributed to that source is no longer accurate — the writer has upgraded a tentative, hedged finding into a settled fact the original author never claimed. The reverse error is just as real: reporting a source’s firm, well-evidenced conclusion with an unnecessarily weak verb (“Smith suggests…”) understates what that source actually established.

This matters for reasons beyond precision. A literature review’s job is to give the reader an accurate map of what the field currently knows and how confidently different sources know it. Reporting verbs are the mechanism that map gets built with, sentence by sentence. Mismatched verbs don’t just misquote one source — compounded across a review section, they can make a field’s overall body of evidence look more settled, or more contested, than it actually is. In peer review, a verb that overstates a cited source’s certainty is one of the more commonly flagged accuracy issues in a literature review or discussion section, precisely because it’s checkable: a reviewer familiar with the cited work can read the mismatch immediately.

The reporting-verb taxonomy

Academic-writing guidance conventionally groups reporting verbs into three or four functional tiers. None of these tiers is inherently more sophisticated or more “academic” than another — the correct tier is whichever one accurately reflects what the source actually did.

Neutral / reporting verbs

These verbs report that a source said or did something without characterizing how confidently, cautiously, or forcefully it was said. They’re the right default whenever you’re summarizing a source’s method, a stated fact, or content you’re not trying to characterize as tentative or forceful.

Examples: states, notes, describes, reports, observes, outlines, discusses, mentions, points out, explains, writes, found (for a directly reported empirical result).

Tentative / cautious verbs

These verbs signal that the source itself presented the claim as provisional, an interpretation, a possibility, or a hypothesis rather than a settled conclusion. Use these when the source’s own language is hedged (see CASRAI’s guide to hedging in academic writing for the vocabulary sources themselves use to signal this).

Examples: suggests, proposes, indicates, implies, speculates, hypothesizes, posits, intimates, tends to conclude, raises the possibility that.

Strong / assertive claim verbs

These verbs signal that the source stated its claim with confidence, as a firm conclusion rather than a possibility. Reserve these for sources that actually wrote with that level of certainty — not for every finding you personally find compelling.

Examples: argues, contends, asserts, maintains, claims, insists, demonstrates (when the source’s own evidence genuinely supports a demonstration, not an inference), establishes.

Within this tier, “claims” is worth flagging on its own: many readers and reviewers hear “claims” as carrying a faint implication of doubt on the writer’s part (“the source says this, but I’m not necessarily endorsing it”) rather than as a neutral report of a strong assertion. If that’s not the effect you intend, “argues” or “contends” is usually a closer match to a source’s own firm assertion without importing the writer’s skepticism into the sentence.

Critical / evaluative verbs

A fourth, smaller cluster is common in literature reviews and discussion sections specifically: verbs that report a source taking a critical or oppositional stance toward other work, or that the writer is using to evaluate a source’s claim rather than simply report it.

Examples: challenges, questions, disputes, refutes, contradicts, critiques, calls into question.

Matching the verb to the source, not to your own argument

The single most common failure mode is choosing a reporting verb based on how the writer wants the claim to function in their own argument, rather than on how the source itself stated it. A source’s tentative, exploratory finding gets reported with “demonstrates” because the writer wants strong support for their own point; a source’s firm, well-evidenced conclusion gets softened to “suggests” because the writer is building toward a different conclusion and doesn’t want to seem to be conceding ground. Both are misrepresentations of the source, independent of whether the writer’s own argument is otherwise sound.

A practical check: before finalizing a reporting verb, reread the specific sentence or passage being cited and ask what certainty language the source itself used. A source that writes “we found,” “results indicate,” or a plain declarative statement of a directly measured result is reported accurately with a neutral verb. A source that writes “may,” “might,” “possibly,” “these findings suggest,” or frames a claim as one plausible interpretation among others calls for a tentative verb. A source that writes “we argue,” “the evidence clearly shows,” or otherwise stakes out a firm position calls for a strong-claim verb. When a source’s own certainty language doesn’t map cleanly onto any one tier, the safer choice is usually the more cautious one — understating a source’s confidence is a smaller misrepresentation than overstating it.

Grammatical patterns

Reporting verbs follow a small number of recurring grammatical patterns, and getting the pattern wrong is a separate (and common) error from getting the tier wrong:

  • Verb + that-clause: “Smith (2023) argues that the mechanism is X.” Most reporting verbs in all four tiers take this pattern.
  • Verb + noun phrase: “Smith (2023) challenges the assumption that X.” Common with critical/evaluative verbs and with verbs like “propose,” “describe,” and “outline” when reporting a method or model rather than a proposition.
  • Verb + gerund: “Smith (2023) suggests reconsidering the standard model.” Less common but grammatically standard for a handful of tentative verbs.

Verb tense in reporting-verb constructions is its own convention with meaningful discipline-to-discipline variation — present tense (“Smith argues…”) is the common default for citing a source’s still-current claim in many fields, while past tense is used for reporting a specific, time-bound study action (“Smith administered a survey to…”). See CASRAI’s guide to verb tense conventions in research papers for the fuller convention, including how it varies by field and by whether you’re citing a claim versus describing a completed study procedure.

An illustrative example

The following is an illustrative composite written to show the pattern, not a quotation or paraphrase of any specific published paper.

Source’s own language: “Our results are consistent with X, though the sample size limits how confidently this can be generalized.”

Overstated: “Jones (2024) proves that X occurs.” — This attributes a firm, generalizable conclusion the source explicitly declined to claim.

Accurate: “Jones (2024) suggests that X may occur, noting that the small sample limits generalizability.” — The tentative verb, plus carrying over the source’s own limitation, matches what the source actually asserted.

Understated (also inaccurate, in the other direction): if the same source had instead written “these results demonstrate X conclusively across the tested conditions,” reporting that with “Jones (2024) suggests…” would understate a claim the source made with genuine confidence.

Common mistakes

Verb creep across a literature review

It’s easy to default to one or two familiar verbs (“states,” “shows”) for every citation regardless of what each source actually claims, simply because they’re the most automatic choices. Beyond the accuracy problem, this also reads as monotonous over a full literature review. Varying the verb should follow from varying source certainty, not from a stylistic desire to avoid repetition — don’t swap in “demonstrates” for variety’s sake if “notes” is what the source actually did.

Using “claims” as a default neutral verb

Because “claims” sounds formal, it’s sometimes reached for as an all-purpose reporting verb. As noted above, it tends to carry an implicit note of writer skepticism that a genuinely neutral report doesn’t need. If the intent is neutral reporting, a verb like “states” or “reports” avoids that implication; if the intent is specifically to flag the writer’s own doubt about the claim, “claims” is doing real work and is the right choice.

Letting the reporting verb do more work than the citation deserves

A strong-claim verb (“demonstrates,” “establishes,” “proves”) attached to a single study, especially an observational or preliminary one, both misrepresents that individual source and can make a broader claim look more settled across the literature than it is. This is closely related to the overclaiming problem covered in CASRAI’s hedging guide — the same discipline of matching language to evidence strength applies whether the claim is the writer’s own or attributed to a cited source.

Ignoring tense conventions within the correct tier

Choosing the right verb tier and then applying it with a tense mismatch for the field or context (“Smith argued that X is true,” where the field’s convention calls for present tense to cite a still-standing claim) is a smaller error than a tier mismatch, but it’s still a convention worth getting right — see the verb-tense guide linked above.

A quick reference table

Tier Signals Example verbs
Neutral Reports content without characterizing certainty states, notes, describes, reports, observes, outlines, found
Tentative Source presented the claim as provisional or possible suggests, proposes, indicates, implies, speculates, hypothesizes
Strong / assertive Source stated the claim as a firm conclusion argues, contends, asserts, maintains, demonstrates, establishes
Critical / evaluative Source (or writer) takes an oppositional or evaluative stance challenges, questions, disputes, refutes, contradicts

Frequently asked questions

What’s the difference between a reporting verb and hedging?

Hedging is calibrating the certainty of your own claims (see CASRAI’s hedging in academic writing guide). Reporting-verb choice is calibrating how confidently you represent someone else’s claim when you cite them. The two often work together in the same sentence — a tentative reporting verb (“suggests”) paired with a source’s own hedged finding is both an accurate report and, functionally, a hedge — but they’re distinct decisions: one is about your evidence, the other is about theirs.

Is “argues” always a strong-claim verb?

In most contexts, yes — “argues” reports that a source is making a case for a position, which implies the source itself is asserting rather than merely suggesting. It’s a reasonable default for citing a source’s thesis or central position paper, but it’s still worth checking that the source is actually arguing a firm position rather than exploring a tentative one.

Why not just use “says” for everything?

“Says” is grammatically fine but rarely precise enough for academic writing, because it doesn’t distinguish a source reporting a directly measured fact from a source speculating about a possible mechanism from a source forcefully arguing a contested position. Academic readers expect the reporting verb to carry that distinction; defaulting to “says” throughout usually reads as imprecise rather than neutral.

Should the reporting verb match the tense the source used?

Not necessarily — reporting-verb tense follows the citing writer’s own field convention (often present tense, for a claim still considered current), not the tense the source itself used. See CASRAI’s verb tense conventions guide for how this works and where it varies by discipline.

What if a single source makes both tentative and strong claims in the same paper?

Match the verb to the specific claim being cited, not to the source as a whole. It’s common and accurate for the same source to be cited with a tentative verb for one finding (“Smith speculates that…”) and a strong verb for another, better-supported one (“Smith also demonstrates that…”) within the same literature review.

Related CASRAI guides

Referenced across the research world

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