3 letter words:

1. dei 2)den 3) did 4) die 5) din 6) end 7) ern 8) ire 9) red 10) rei 11) rid 12) rin

4 letter words:

1. deni 2) died 3)dine 4) dire 5) ired 6) nerd 7) nide 8) redd 9) rein 10) rend 11) ride 12) rind

5 letter words:

1. dined 2) diner 3) dried 4) inder 5) nided 6) redid

6 letter words:

1. ridden 2) rinded

Total 32 words. Upvoted and resteemed.