Assalam-u-alaykum!

Idea of Grammatical and Weight Wise Concordance of the Qur'an is available for free download at:

Direct link:
http://asimiqbal2nd.files.wordpress.com/2011/02/quran-grammar-concordance-v1-1.pdf

Grammatical concordance of the Qur'an. Many efforts are being made on vocabulary and root wise concordance of the Qur'an , but this idea focuses on grammatical and
weight wise concordance of the Qur'an using similar weights of different roots. Like in vocabulary concordance different weights of the same root have some link to the root meaning, similarly in grammar concordance same weights usually have some similar effects on the meaning of the root. 

 

e.g. for weight fu'laan on which Qur'aan, Burhaan, Furqaan, Subhaan, Sultaan, Bunyaan, Tughyaan, Tufaan,  etc. are based.

 

A very brief preview is pasted below:

 

Lemmas	Buckwalter	Frequency	G2	Weight	Fa Ayn Laam
قُرْءَان	quro'aAn	70	N03.2	fu'laan	qaaf ra alif
سُبْحَٰن	suboHa`n	41	N03.2	fu'laan	siin ba Ha
سُلْطَٰن	suloTa`n	37	N03.2	fu'laan	siin laam tuay
طُغْيَٰن	Tugoya`n	9	N03.2	fu'laan	tuay ghayn ya
بُرْهَٰن	buroha`n	8	N03.2	fu'laan	ba ra hay
عُدْوَٰن	Eudowa`n	8	N03.2	fu'laan	ayn daal waw
بُنْيَٰن	bunoya`n	7	N03.2	fu'laan	ba nuun ya
فُرْقَان	furoqaAn	7	N03.2	fu'laan	fa ra qaaf
بُهْتَٰن	buhota`n	6	N03.2	fu'laan	ba hay ta
حُسْبَان	HusobaAn	3	N03.2	fu'laan	Ha siin ba
خُسْرَان	xusoraAn	3	N03.2	fu'laan	kha siin ra
قُرْبَان	qurobaAn	3	N03.2	fu'laan	qaaf ra ba
ثُعْبَان	vuEobaAn	2	N03.2	fu'laan	tha ayn ba
طُّوفَان	T~uwfaAn	2	N03.2	fu'laan	tuay waw fa
رُكْبَان	rukobaAn	1	N03.2	fu'laan	ra kaaf ba
غُفْرَان	guforaAn	1	N03.2	fu'laan	ghayn fa ra
كُفْرَان	kuforaAn	1	N03.2	fu'laan	kaaf fa ra