Past tense of demonstrate
regular verb
The past tense of demonstrate is demonstrated. The past participle is also demonstrated.
Forms of demonstrate
| Base form (V1) | demonstrate /ˈdɛm.ənˌstɹeɪt/ |
|---|---|
| Past tense (V2) | demonstrated /ˈdɛmənstɹeɪtɪd/ |
| Past participle (V3) | demonstrated /ˈdɛmənstɹeɪtɪd/ |
| Present participle | demonstrating |
| Third person singular | demonstrates |
Demonstrated in a sentence
- The debate was not long on policy, as questions about the Affordable Care Act and the war in Syria demonstrated.2016, David A. Graham, “Donald Trump's Disastrous Debate”, in The Atlantic, page http://www.theatlantic.com/liveblogs/2016/10/second-preside...
- The ancient Egyptian demonstrated that the Earth is round, not flat.From the entry round
- Historical re-enactors demonstrated how a hink was traditionally used during harvest season.From the entry hink
- Tests have demonstrated the innocence of this substance.From the entry innocence
- The prosecution argued that the defendant's exact repetition of his account of the events several times demonstrated the rehearsal of his story.From the entry rehearsal
Meaning of demonstrate
- verb To show how to use (something).
- verb To show the steps taken to create a logical argument or equation.
- verb To participate in or organize a demonstration.
Questions about the past tense of demonstrate
- What is the past tense of demonstrate?
- The past tense of demonstrate is demonstrated.
- What is the past participle of demonstrate?
- The past participle of demonstrate is demonstrated.
- Is demonstrate a regular or irregular verb?
- Demonstrate is a regular verb: its past tense adds -d.
Source and license
Adapted from Wiktionary: demonstrate (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 demonstrate.” Word.ws, https://word.ws/past-tense/demonstrate. Based on Wiktionary, CC BY-SA 4.0.