Conform To vs. Conform With keeps the comparison evidence-led: Cambridge documents both constructions, so the guide does not manufacture a right/wrong distinction.
ReviewedEvidence1 sourceSectionEnglish Usage
Quick answer
Both conform to and conform with are documented for following standards, rules, expectations, or conventions.
Key details
Confusion Familyusage-construction
Rule Familyconstruction choice
Termsconform to, conform with
Further guidance
Core difference
Cambridge gives examples of both conform to and conform with for social conformity and for meeting laws, rules, standards, or conditions.
Style Boundary
Choose a natural construction for the sentence and house style; the evidence does not justify declaring one of these two forms categorically invalid.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
Conform↗ (opens in a new tab)Cambridge University Press · Direct learner-dictionary evidence for both conform to and conform with constructions.
Agree With vs. Agree On separates directly documented constructions and keeps the distinction narrow rather than turning a context-sensitive pattern into a universal preposition rule.
Angry With vs. Angry About separates directly documented constructions and keeps the distinction narrow rather than turning a context-sensitive pattern into a universal preposition rule.
Appropriate For vs. Appropriate To separates directly documented constructions and keeps the distinction narrow rather than turning a context-sensitive pattern into a universal preposition rule.
Available To vs. Available For separates directly documented constructions and keeps the distinction narrow rather than turning a context-sensitive pattern into a universal preposition rule.
Be Bound To Do vs. Bound For Somewhere separates two distinct Oxford-documented senses. Bound to do/be expresses certainty or likelihood, while bound for + destination describes travel toward a place. The guide keeps those senses separate from legal or duty-bound uses.
Be Elated To Do vs. Elated By Something compares two directly documented complement patterns for “elated.” Oxford evidence supports an infinitival use as well as elated at/by + noun phrase, so the guide explains the construction choice without generalizing from synonyms.