Word.ws English Dictionary

Past tense of speculate

regular verb

The past tense of speculate is speculated. The past participle is also speculated.

Forms of speculate

Base form (V1)speculate /ˈspɛk.jʊˌleɪt/
Past tense (V2)speculated
Past participle (V3)speculated
Present participlespeculating
Third person singularspeculates

Speculated in a sentence

  • The press speculated about whether he would take the stand and testify in his defense.From the entry take the stand
  • While life as we know it depends on oxygen, scientists have speculated that alien life forms might breathe chlorine or methane.From the entry breathe
  • Finkel speculated that the recession could amplify the fallout from monetary mismatchings.2009 August 16, Catherine Rampell, “I Say Spend. You Say No. We’re in Love.”, in New York Times. From the entry mismatching
  • Another Sprint employee speculated that someone might have fatfingered the keyboard.1995 September 8, “US West software update disconnects online users”, in Star Tribune, Minneapolis, Minn.. From the entry fat-finger
  • Before this bail-out, it had been widely speculated that the project would have to go on the back burner.2023 April 5, “Network News: West Midlands Metro extension receives £60 million bail-out”, in RAIL, number 980, page 9. From the entry back burner

Meaning of speculate

  1. verb To think, meditate or reflect on a subject; to consider, to deliberate or cogitate.
  2. verb To make an inference based on inconclusive evidence; to surmise or conjecture.
  3. verb To make a risky trade in the hope of making a profit; to venture or gamble.

Full definition of speculate

Questions about the past tense of speculate

What is the past tense of speculate?
The past tense of speculate is speculated.
What is the past participle of speculate?
The past participle of speculate is speculated.
Is speculate a regular or irregular verb?
Speculate is a regular verb: its past tense adds -d.

Source and license

Adapted from Wiktionary: speculate (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 speculate.” Word.ws, https://word.ws/past-tense/speculate. Based on Wiktionary, CC BY-SA 4.0.