Word.ws English Dictionary

Past tense of substantiate

regular verb

The past tense of substantiate is substantiated. The past participle is also substantiated.

Forms of substantiate

Base form (V1)substantiate /səbˈstænʃieɪt/
Past tense (V2)substantiated
Past participle (V3)substantiated
Present participlesubstantiating
Third person singularsubstantiates

Substantiated in a sentence

  • However, as the hospital equipment was installed by German firms, it is thought probable that the locomotive came from the same source, and this theory is substantiated by the fact that the control mechanism is of German manufacture.1957 December, H. R. Stones, “The Hellingly Hospital Railway”, in Railway Magazine, page 871
  • There were, at that time, two theories (never quite substantiated) as to why Ibiza was airportless.2001, Roger Bray, Vladimir Raitz, Flight to the sun: the story of the holiday revolution. From the entry airportless
  • The biophysical principles of impedance rheocardiography were first substantiated by Russian (A.2000, Critical Reviews in Biomedical Engineering, page 106. From the entry rheocardiography
  • Fetiales also investigated allies' claims of abuse by Romans; if substantiated, the fetiales delivered the men accused to the injured parties.2016, Amanda J. Coles, “Ius Fetiale”, in Sara E[lise] Phang, Iain Spence, Douglas Kelly, Peter Londey, editors, Conflict in Ancient Greece…. From the entry fetialis
  • Russell's clandestine attempt to initiate diplomatic contact with the Confederacy left an image of backhandedness that substantiated Seward's direst premonitions about British self-interest.2010, Howard Jones, Blue & Gray Diplomacy: A History of Union and Confederate Foreign Relations, →ISBN, page 68. From the entry backhandedness

Meaning of substantiate

  1. verb To verify something by supplying evidence; to authenticate or corroborate.
  2. verb To give material form or substance to something; to embody; to record in documents.

Full definition of substantiate

Questions about the past tense of substantiate

What is the past tense of substantiate?
The past tense of substantiate is substantiated.
What is the past participle of substantiate?
The past participle of substantiate is substantiated.
Is substantiate a regular or irregular verb?
Substantiate is a regular verb: its past tense adds -d.

Source and license

Adapted from Wiktionary: substantiate (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

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Cite this page: “Past tense of substantiate.” Word.ws, https://word.ws/past-tense/substantiate. Based on Wiktionary, CC BY-SA 4.0.