I think that for Jar the first part is like "jar" in English, but DIN is more like "then"

It's a little difficult to explain these sounds using only written words, but I'll try. (You must understand that to be able to say these words with a perfect French accent, they must be heard and practiced again and again). JAR (pronounced just like the English word "Jar") DAN (This syllable is spoken like someone named Dan. The "A" is spoken like it is in the word "Man") PUB (pooob... "U" like in "winnie to pooh") LIK (spoken like the word "leak" - basically EEEK). That's the closest I can do for you. Hope that helps.