Splitting an infinitive is a grammatical error in English.

the verdict

REFUTED

the evidence says no

Recorded sources

0 sources for · 1 against

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Is it true that splitting an infinitive is a grammatical error in English?

No. One reference source directly addresses the claim: it reports that split infinitives were deprecated by 19th-century prescriptivists but that recent English usage guides have largely dropped the objection, indicating the construction is not a grammatical error. The remaining items either mention the topic only in passing or are unrelated.

Verdict: REFUTED · 0 sources for, 1 against · Last checked 3 Oct 2026

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence against · 1

Split infinitive - Wikipedia

Get citation

Split infinitive - Wikipedia. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Split_infinitive

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