what are you up to
/ˈwʌɾɝjəˈʌptu/
RP: /ˈwɒtəjəˈʌptu/
Meaning: what are you up to?
GA flap+links; you→/jə/
Mistake: Pronouncing every word as a separate katakana unit: "WHATTO AH YU APPU TSU", with a clear t on "what" and a full vowel on "to".
Why: Katakana loanword habits map each English syllable onto a mora, which blocks the flap and the schwa reductions that make the phrase sound casual.
Fix: In GA, "what are" flaps its t to [ɾ] and links straight into "are", "you" reduces to [jə], and "up to" links tightly: [ˈwʌɾɝjəˈʌptu]. Practice it as one breath group, not four words.
Mistake: Inserting a slight pause before "up to" and articulating the final consonant of "what" as a released stop, similar to Korean batchim patterns.
Why: Korean syllable-final consonants are typically unreleased or clearly bounded, which resists the English habit of linking a final consonant straight into the next vowel.
Fix: Let the t of "what" flap and glide directly into "are you": [ˈwʌɾɝjə], then continue without a break into "up to" [ˈʌptu]. The whole phrase should feel like a single rhythmic unit.
Mistake: Treating "are" as a stressed, fully pronounced word ("WHAT AH YOU") because Chinese has no unstressed copula equivalent to reduce.
Why: Mandarin verbs don't inflect or reduce for grammatical function the way English auxiliaries do, so learners often give "are" full weight by default.
Fix: "Are" almost disappears here — it merges into the r-colored vowel of the flap: [ɝ]. Say "whaddaya" as a rough phonetic anchor, then add "up to" on the end.
"What are you up to?" is one of the most common casual openers in American English, roughly equivalent to "What are you doing?" but with a slightly more open, curious tone — it invites a broader answer than just the current activity. It also carries an idiomatic secondary meaning: "What are you up to?" can imply mild suspicion, as in "What mischief are you planning?" Context and intonation distinguish the two readings — a flat, friendly rise usually signals the neutral greeting sense, while a slower, narrowed-eye delivery signals suspicion. Because the phrase is so frequent, native speakers compress it heavily; learners who only practice the careful, word-by-word form will sound noticeably formal or even robotic in casual conversation, so drilling the flapped, linked version is worth the extra effort.