Past tense of infiltrate
regular verb
The past tense of infiltrate is infiltrated. The past participle is also infiltrated.
Forms of infiltrate
| Base form (V1) | infiltrate /ˈɪnfɪltɹeɪt/ |
|---|---|
| Past tense (V2) | infiltrated |
| Past participle (V3) | infiltrated |
| Present participle | infiltrating |
| Third person singular | infiltrates |
Infiltrated in a sentence
- The spy infiltrated the high-tech company and stole many secrets.
- Caithness was infiltrated with a palpable sense of being underimagined.2012, Will Self, Tough, Tough Toys for Tough, Tough Boys, →ISBN, page 113
- And now, they have infiltrated our street.” “I have had horrible experiences with shapeshifters in the past.2024 November 11, Jake Bender & Zach Dunn, “Laszlo's Father” (1:34 from the start), in What We Do in the Shadows, season 6, episode 6…. From the entry shapeshifter
- Samples were infiltrated for 24 hours with pure LR White containing 2% benzoyl peroxide as a catalysator.2015 July 6, “Specialized Cortex Glial Cells Accumulate Lipid Droplets in Drosophila melanogaster”, in PLOS ONE, →DOI. From the entry catalysator
- Makeup colors like ivory and blush dominate spring collections and have even infiltrated Burberry's shoes.2006 January 9, Kate Betts, “What to Watch For in 2006”, in Time. From the entry blush
Meaning of infiltrate
- verb To surreptitiously penetrate, enter or gain access to.
- verb To cause to penetrate in this way.
- verb To pass through something by filtration.
Questions about the past tense of infiltrate
- What is the past tense of infiltrate?
- The past tense of infiltrate is infiltrated.
- What is the past participle of infiltrate?
- The past participle of infiltrate is infiltrated.
- Is infiltrate a regular or irregular verb?
- Infiltrate is a regular verb: its past tense adds -d.
Source and license
Adapted from Wiktionary: infiltrate (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 infiltrate.” Word.ws, https://word.ws/past-tense/infiltrate. Based on Wiktionary, CC BY-SA 4.0.