Re: Need Guidance about the ‘wazan’ of a verse…in urdu that is… kafia and ra
Khan, welcome to the forum 
The question you asked in one and half lines, will require an answer involving lots of efforts and excercises. In short, see the following:
**Sar jhukaao ge to pathar dewtaa ho jaaye ga
itna mat chaaho ussey, woh bewafaa ho jaaye ga
**
This is the matla (first couplet) of ghazal by Bashir Badar. Words in red are qafiya and words in green are radeef. The meter (wazn) of this sheir could be digitally defined in this way: ** 2122, 2122, 2122, 212**. I hope it makes some sense to you