Stress and rhythm in English pronunciation

weak form

content words and function words

funtion words 有weak form 和 strong form

you 

have 

from

https://www.englishforums.com/English/PronunciationOfTo/dbqnl/post.htm

 

https://www.multimedia-english.com/phonetics/weak-vs-strong-forms

 

https://www.youtube.com/watch?v=UbcEiFTmkQo&feature=youtu.be