It's a very short sound, almost like a quick "d" followed by a very soft "uh".
Here's a breakdown:
* D: Pronounced with the tongue touching the back of your teeth.
* E: A very short and almost silent vowel sound.
Important Note: The pronunciation of "de" can slightly change depending on the following word. For example:
* De + vowel sound: The "e" in "de" can be almost silent, making the sound more like "d".
* De + consonant sound: The "e" in "de" is more pronounced, making the sound more like "duh".
Let me know if you'd like to hear some examples!