Speaking clearly and being understood when speaking English isn’t just about pronouncing vowels and consonants correctly, or even using the correct rhythm, stress and connected speech pronunciation rules.
Another key to speaking clearly and being understood is pausing between groups of words in your sentences.
That means, native English speakers do not speak continuously. In fact, they take tiny pauses (meaning, they don’t speak for a fraction of a second) between groups of words.
Why Pause?
Give the listener time to understand your words.
Emphasize one main word in a group of words.