Now, that’s an irregular plural!
Why wrong: Though some would disagree, for the majority of English speakers, the word bacterias doesn’t exist. The right word is bacteria, an irregular plural, whose singular form is a bacterium. Click here for more examples. To be taken seriously (at least in 2018)…
Correct it: “There were a lot of bacteria in the air.”
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Why wrong: The word medias doesn’t exist. The word is media, an irregular plural, whose singular form is a medium. Television is a medium, radio is another medium and the press is yet another one. All of them together are the media.
Correct it: “All of the media were there.”
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