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[The Language Detective: Decoding Teen Speak, Linguistic Trends, and the Future of AI]-[How 'be like' took over the world, with Sali Tagliamonte]

Grammar Girl Quick and Dirty Tips for Better Writing · B2 · 2026-02-26

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📋 Summary

The Methodology of a Language Detective

In this episode, Mignon Fogarty interviews Sally Tagliamonte, a professor of linguistics at the University of Toronto who describes herself as a "language detective." Tagliamonte shares her unique approach to studying language, emphasizing the importance of being an "honest listener." Rather than imposing herself on subjects, she gathers data by engaging in natural, open-ended conversations, often using techniques like asking people to tell stories about their lives—such as times they were "falsely accused"—to elicit authentic speech patterns. This method allows researchers to observe "linguistic variation" in its natural habitat without the interference of self-consciousness.

Dispelling Myths About Teen Language

One of the central themes of Tagliamonte’s research is debunking the persistent myth that young people are "destroying the language." Drawing on her work, including her book Teen Talk, she explains that while teenagers use creative linguistic tools—such as "funky ways of spelling," capitalization, and reduplication—to "embellish the language," they do not fundamentally change the underlying grammar. She notes that teenagers are highly aware of the difference between formal and informal contexts, often "correcting their own grammar" to suit the environment. Their playfulness with language, she argues, actually demonstrates a sophisticated mastery of grammatical rules rather than a lack thereof.

The Evolution of Quotatives and Intensifiers

Tagliamonte highlights the evolution of "quotative frames" and "intensifiers," two areas where generational shifts are most apparent. She notes that the phrase "be like" has become the dominant quotative across generations, moving beyond a youth-specific slang term. Even individuals who are now in their 40s continue to use it at the same rate they did as teenagers. Regarding intensifiers, Tagliamonte explains that while she once hypothesized that "so" would replace "very" as the primary intensifier in North American English, her recent research indicates that "very" is actually making a comeback. These shifts serve as a primary indicator of "linguistic change and progress," driven by social dynamics rather than a decline in language quality.

The Future: Human Language vs. AI

Looking toward the future, Tagliamonte expresses interest in applying her sociolinguistic framework to Large Language Models (LLMs) like ChatGPT. She raises critical questions about how these models, which are "scraped from" unknown sources, represent human social relationships and regional differences. Because human language is "keyed intimately and importantly to time and place," she wonders how AI-generated text will impact human communication. She notes that people are already beginning to adjust their own speech patterns, "formulating" their questions carefully to ensure AI systems provide the desired output. This emerging relationship between human speakers and AI models represents a new and complex "vista for studying language variation" that Tagliamonte plans to investigate in her future research.

🎯Key Sentences

1
That was right at my breakfast table.
2
You just say nothing.
3
I knew what to look for.
4
You're way, way off.
5
Whether we like it or not, like is here to stay.
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📝Key Phrases

1
get past that
2
a whole new world of
3
right before your very eyes
4
get lost
5
of its time
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📖 Transcript

Grammar Girl here.
I'm Mignon Fogarty.
And today I'm here with Sally Taglamanti from the linguistics department at the University of Toronto and a self-described language detective.
And you are just going to love hearing about her work today.
Sally, welcome to the Grammar Girl podcast.
It's great to be here.

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