Hi! These expressions are taken from "Of Mice and Men". I couldn't understand the grammatical point of these sentences. I mean using modal and the past form of the verb simultaneously. How does this usage effect the meaning and when do we use such expressions? Thanks in advance.
George looked coldly at him. "Ain't you got any idear?" he asked. And Candy was silent. "I should of knew", George said hopelessly. "I guess maybe way back in my head I did."
Slim sighed. "Well, I guess we got to get him. Where you think he might of went?
It seemed to take George some time to free his words. "He -would of went south," he said. "We come from north so he would of went south."