-ed pronunciation

1. Invent - Invented [id]
2.      Create - created [id]
3.      Develop - developed [t]
4.      Found - founded [id]
5.      Investigate- investigated [id]
6.      Construct - constructed [id]
7.      Launch - launched [t]
8.      Repair - repaired [d]
9.      Plug in - plugged in [d]
10.    Unplug- unplugged [d]
11.    Discover - discovered [d]
12.    Change - changed [d]
13.    Use - used [d]
14.    Make - made - made -  irregular verb
15.    Design - designed [d]
16.    Explore - explored [d]
17.    Observe - observed [d]
18.  Build - built - built - irregular verb