Past tense of decontaminate
regular verb
The past tense of decontaminate is decontaminated. The past participle is also decontaminated.
Forms of decontaminate
| Base form (V1) | decontaminate /diːkənˈtæmɪneɪt/ |
|---|---|
| Past tense (V2) | decontaminated |
| Past participle (V3) | decontaminated |
| Present participle | decontaminating |
| Third person singular | decontaminates |
Decontaminated in a sentence
- Concrete floors and walls can be mechanically decontaminated by removing the contaminated surface layer (1 to 2 inches) using surface grinders, spallers, or pneumatic drills.1982, Shippingport Atomic Power Station, Decommissioning. From the entry spaller
Meaning of decontaminate
- verb To remove contamination from (something), rendering it safe.
Questions about the past tense of decontaminate
- What is the past tense of decontaminate?
- The past tense of decontaminate is decontaminated.
- What is the past participle of decontaminate?
- The past participle of decontaminate is decontaminated.
- Is decontaminate a regular or irregular verb?
- Decontaminate is a regular verb: its past tense adds -d.
Source and license
Adapted from Wiktionary: decontaminate (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 decontaminate.” Word.ws, https://word.ws/past-tense/decontaminate. Based on Wiktionary, CC BY-SA 4.0.