I don’t have an answer for you but You might try saying “would you likeetchup?” Leaving of k and making the “like” and the “ketchup” would like one word. Try saying the “word” “likeetchup” and see if it’s easier. Be sure to think of it and say it as a single word. Don’t picture each word, but imagine a new word. People typically stutter at the beginning of words and if the “k” is more difficult then that might help. Worth a try anyway—retired speech therapist.