That miners strike was a damned good idea wasnt it. I think that lovely Mrs Thatcher did a cracking job!
"Tha knows" is not a question, it is a statement meaning "I'm telling you!". The only question a Yorkshireman asks is "Ow much????!!!" but even then, it's more of a statement than a question, meaning "You are bloody joking!"
Thank you for furthering my education in all matters Yorkshire. I will from this day on refer to you as my Yorkshire sage. Tha knows!
I thought nar, then, tha' noos and 'ow much were the only phrases necessary to communicate in Yorkshire?