According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern --R--PE-T. That is, nine letter words with 3rd letter R and 6th letter P and 7th letter E and 9th letter T. In alphabetical order, they are:

forespent

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 17 words with the pattern -O--SP---. That is, nine letter words with 2nd letter O and 5th letter S and 6th letter P. In alphabetical order, they are:

cockspurs

downspins

downspout

forespake

forespeak

forespend

forespent

forespoke

goldspink

gowdspink

homespuns

homospory

loadspace

longspurs

soupspoon

woodspite

workspace

carpet, firm pit, worm pit, sure fit

Most of these are not perfect rhymes but are at least partial rhymes:1. alupent

2. arpent

3. erumpent

4. forespent

5. forspent

6. misspent

7. outspent

8. overspent

9. pent

10. repent

11. serpent

12. spent

13. strepent

14. torpent

15. underspent

16. unspent

17. uppent

from: rhymezone.com

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 84 words with the pattern --RE---N-. That is, nine letter words with 3rd letter R and 4th letter E and 8th letter N. In alphabetical order, they are:

adreading

agreement

arreeding

arrestant

arresting

aurelians

aureoling

bereaving

careening

careering

caressing

curetting

directing

egressing

firebrand

firestone

foreanent

foredoing

forefront

foregoing

forelying

foremeans

foremeant

forenoons

foreplans

forepoint

foreshank

foreskins

forespend

forespent

forestine

foresting

forethink

forewarns

gorehound

horehound

koreroing

merestone

parenting

peregrine

peregrins

phreaking

rarefying

rereading

rerenting

screaking

screaming

screeding

screening

screeting

screeving

shredding

shreeking

shreiking

sirenians

spreading

spreazing

spredding

spreezing

streaking

streaming

streeking

streeling

streeting

stressing

strewment

suretying

terebrant

threading

threaping

threatens

threating

threeping

threonine

threshing

unreasons

unreaving

unreeling

unreeving

unreining

unresting

uprearing

vireonine

virescent