Linking Sounds: This is why you don't understand native speakers of English
The main difficulty for most English learners is to understand natives speakers. As an English learner myself, I used to struggle too. So as you can see you’re not alone. One of the things that used to cause me a lot of grief was the linking sounds, also known as connected speech. When natives speak they link words to sound more natural. This phenomenon is not exclusive to English, it occurs in other languages too. The issue for us is the fact words will sound very different in sentences than when we say them separately.
The best way to go about this is to practice linking when you speak. If you do this, you will understand natives and be understood better. Don't worry it gets easier as you practice. After reading this post, start paying attention to natives speaking and be aware of the