Advanced Flow Secrets

The final two mechanics of connected speech: sounds that fuse into brand-new consonants, and consonants that quietly change shape to match their neighbour. Master these and "Did you" becomes "Did-joo" without you ever forcing it.

Instructor Saroar Hossain Duration 90 minutes Series British English Pronunciation Masterclass

Yod Coalescence Assimilation Did-joo Practice

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Yod Coalescence

When /t/, /d/, /s/, or /z/ collide with a /j/ ("y") sound at a word boundary, they don't stay separate — they fuse into a completely new consonant.

Assimilation Basics

A consonant at the end of a word often shifts its place of articulation to match the consonant that follows — smoothing the transition so your mouth never has to jump.

"Did You" → "Did-joo"

The flagship example of yod coalescence.

did you → /dʒ/ → "did-joo"

/d/ + /j/ becomes a brand-new sound

The final /d/ of "did" and the /j/ that opens "you" don't just sit next to each other — they merge into /dʒ/, the same sound at the start of "jump." That's why casual "did you" collapses into "didja" or "did-joo," and why "won't you" becomes "won-choo."

Practice

Ten questions — five on yod coalescence, five on assimilation.

Lesson 9: Advanced Flow Secrets

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