Accent Error Pattern: Using the tense vowel /u/, for example "look" sounds like "Luke"
How to Correct the Errors: Relax the lips but stay rounded, open the jaw more.
Learn the common words with this vowel. Use an anchor word - could, put, should, would.
Learn the "oo" words that don't say /u/:
good, look, stood, wood, book, took, cook, foot
Vowel /ʊ/ video: https://youtu.be/kOOu8RpjlmU
Words with oo video: https://youtu.be/GnGpKB8Lb3Q
website practice: https://www.speechmodification.com/free/how-to-pronounce-words-with-oo