This is the official Youtube-Channel of easy-deutsch.com. I explain German grammar in an easy-to-understand way from a student's point of view.
Cases, adjective declension, declension in general, sentence structure,... everything you need to know about German grammar.

There is also my German sister channel. I explain German grammar in German only for more advanced learners and native speakers: https://www.youtube.com/channel/UCluY2ph0_l4rwlYEz_xHM6g