I am currently writing a mystery fic based in Slovakia. Out of the four characters featured in the story, three are Slovaks. I am having trouble writing their accented English.

How do you think their accent would be? We know the Bulgarians used 'v' for 'w', and 'ff' for 'v' in GOF. Would that be the same case with Slovaks?

Also, if there is a real Slovak out here, I would love to correspond with you about the use of the national language in my fic. Please?