1.  Say IH instead of E (say pin instead of pine)

2.  Say A instead of EH (say pain instead of pen)

3.  Say UH instead of AH (say cup instead of cap)

4.  Say EW instead of OOH (say kooky instead of cookie) 

5.  Say O instead of AW (say cope instead of cop)

6.  Say A instead of EH (say paste instead of pest)

7.  Say UH instead of O (say but instead of boat)