Throughout the course I have been puzzled by words that seem to be thrown into sentences at random, but don't change the meaning such as ja, denn, mal etc.
Then I came across this Easy German video: https://www.youtube.com/watch?v=-Awhco_VHWE&t=358s
then I found that if you google Modalparikeln you get quite a lot of hits, here are a couple:
http://languagelearningbase.com/88440/modalpartikeln-german-filler-words
http://germanforenglishspeakers.com/other/modal-particles/
My German grammar book doesn't even mention them, but these links helped me understand what they are about if not exactly how to use them all.
Then I came across this Easy German video: https://www.youtube.com/watch?v=-Awhco_VHWE&t=358s
then I found that if you google Modalparikeln you get quite a lot of hits, here are a couple:
http://languagelearningbase.com/88440/modalpartikeln-german-filler-words
http://germanforenglishspeakers.com/other/modal-particles/
My German grammar book doesn't even mention them, but these links helped me understand what they are about if not exactly how to use them all.