6	viffed	5	fifed
4	vied	4	vide
4	five	4	fife
4	fief	4	fide
4	dive	4	diff
4	defi	3	vie
3	vid	3	iff
3	ide	3	fie
3	fid	3	fed
3	eff	3	dif
3	die	3	dev
3	def	2	if
2	id	2	fi
2	fe	2	ef
2	ed	2	de