Two doors down, a sound law is read from a fossil six thousand years deep; next door, from one six hundred deep. This one you can read from your own mouth, today. When you say “I’m gonna win,” you are not being lazy — you are running a brand-new piece of English grammar, a future marker that the words going to are still in the middle of becoming. And you can prove it has split off, because the very same reduction is blocked exactly where the old, literal going to a place survives.
The sibling pages in this seam open on a doublet — two English words (father / paternal) that turn out to be one word, split by a sound law thousands of years ago. The split is finished; the fossil is cold. Here the doublet is warm. going to has split into two words inside living memory of usage — and both halves are still in your mouth, which is exactly why you can watch the seam.
This is grammaticalization: a content word (here a verb of motion) wearing down into a piece of grammar (a marker of tense). It is the same kind of change as Grimm’s Law next door — regular, directional, reshaping the language from the inside — except this one has not finished. You are a speaker it is happening in. The next section is the test you can run on your own ear.
Here is a fact about your own English you have never been taught and have always obeyed. The casual reductions gonna, wanna, gotta, hafta, usta are not just sloppy speech that can land anywhere the words appear. Each one is licensed only when its to is doing grammatical work — the infinitive marker of a verb — and is blocked the moment to goes back to being an ordinary preposition or belongs to something else in the sentence. Pick a form, then hit contract it and watch where the reduction takes and where your own ear refuses it.
You did not learn that rule from a book — no one teaches it, and most dictionaries do not state it. You absorbed it the way you absorbed Grimm’s Law’s descendants: by being a native speaker of a system mid-change. The reduction has quietly become a diagnostic for grammar that your mouth applies hundreds of times a day.
Grammaticalization is not random wear; it runs along a cline — Hopper & Traugott’s one-way road from a full content word → a grammatical word → a clitic (a leaning, reduced form) → an inflectional affix welded onto another word. The beautiful thing about English is that you can see four forms standing at four different points on that same road, all at once. Tap a marker.
be like got on the road in the 1980s and has barely left the on-ramp; gonna and ’ll are well down it, reducing as they go; -ly drove off the far end so long ago that the word it came from — Old English līċe, “having the body or form of” — is gone from your awareness entirely. Every quick·ly you say is a fossil that finished the exact journey gonna is on now.
This is the moment to be careful, because it is where this page differs from its two siblings. The cline is famously claimed to run one way only: content → grammar, never back. If that held without exception, it would be a law as clean as Grimm’s. It does not. Degrammaticalization is rare and hotly debated — but real cases exist, where a grammatical form crawls back up the road toward content. Honesty requires showing them.
What this is. Standard, textbook historical linguistics — grammaticalization (Hopper & Traugott 2003), the to-contraction diagnostic (Pullum 1997), and sourced etymologies for will, -ly and the quotative be like — made into something you operate on your own speech. Nothing here is an original linguistic finding. The only thing new is the form: the third sibling of The First Sound Shift (≈6,000 yr) and The Sound the Spelling Forgot (≈600 yr), drilling to depth zero — a sound change you can catch in the act.
How it is kept honest. The three kinds of claim are marked apart. (a) The etymologies and the be like dating are sourced, not re-derived — OED, etymonline, and the handbooks. (b) The contraction generalization — the reduced form appears only where to is the governed infinitive marker — is a sourced linguistic description (Pullum 1997; Hopper & Traugott 2003). Pullum’s own analysis of why is morpholexical, not syntactic: wanna, gonna are derived lexemes, not a free contraction rule — which is exactly why their distribution is restricted. We use his distributional facts, not a theory of the mechanism. (c) The individual ✓ / ✗ minimal pairs are native-speaker grammaticality judgments chosen to illustrate (b) — reported, not measured; the wanna block we rest on plain non-adjacency, noting (not leaning on) the subtler wh-gap constraint.
What is and isn’t proved. The verifier in research/zero-years-deep/ runs — internal-consistency assertions: that every reduces example tags to as the infinitive marker and every blocked one does not; that each reduction (going to → gonna …) is derivable by rule, not hand-typed; that the cline’s four forms are correctly ordered along the road; that every claim carries a source; and that the page embeds this data byte-for-byte. That check catches mislabeling and drift. It does not prove the grammaticality judgments (they are intuitions reported from the literature), nor the etymologies (sourced), nor that grammaticalization is unidirectional — that last is an open debate, and the page reports it with its counterexamples rather than papering over it. Unlike Grimm’s Law next door, which is exceptionless once Verner’s Law is folded in, the cline’s direction is a tendency — said on the page, not hidden.
⌂ A layer of the Artificial Wasteland. Language seam. · the deep-time sound shift · the spelling that froze · the full ground