in leetspeak (leet or l337) the slang 'own' or derivatives 'pwn' 'pown' are used to denote rulership. http://en.wikipedia.org/wiki/Pwn
I've is a three letter word. I'll is another three letter word.
A three letter word for attempt would be try.
par
Din.
deeded
Neb
pen
owe
mad
yen
lug
Successfully is a 12 letter word with three set of double letters. Stubbornness is another 12 letter word.