Hi,
You are correct, spoken tamil is always differ from written tamil, like other languages like English....
And also the spoken tamil can differ by every district in tamilnadu. Each district has it's own slang.
Example: Vannakkam, in chennai slang vanggo, in Coimbatore slang vanakkamunga like that... So it will be difficult some what..
Like you said, en payar - spoken: em peru,
En oor (my place), spoken: en ooru,
Appo means before... I think, there is no surprising factor in appo
Yeppo means when?
Ippo means now
Thanks,
Mekala