Japanese speakers
Mistake: Pronouncing it as "KEPUTO GOOINGU" with a full t release and epenthetic vowels.
Why: Katakana English preserves each consonant with a supporting vowel.
Fix: The t of "kept" is elided before the g of "going": [ˈkɛpˈɡoʊɪŋ]. Same pt-elision rule as "kept quiet" [ˈkɛpˈkwaɪət].
Korean speakers
Mistake: Producing clear released [t] and aspirated [ɡ] with syllable break.
Why: Korean releases word-final consonants clearly.
Fix: Elide the t of "kept": [ˈkɛpˈɡoʊɪŋ]. The [pt + g] cluster simplifies to [p + g] in fluent speech.
Spanish speakers
Mistake: Producing Spanish-style fricative [ɣ] between vowels for the g.
Why: Spanish g weakens between vowels.
Fix: English [ɡ] in "going" stays as a full stop: [ˈkɛpˈɡoʊɪŋ]. And elide the t of "kept".