Hehe! Can I put you more chalenge on here!?
Learn Slovene with all things you’ve already mentioned + duality? What about that? And even dual thingys change with genter and time!
Jaz sem. - I am
Oni (dve) sta. - They (two) are for feminine (apeals for neutral too)
Ona (dva) sta. - They (two) are for masculine.
Oni so - They are. for masculine or mixed genters
One so. - They are for feminine
Ona so. - They are for neutral.
and then past
Jaz sem bil. - I was.
Oni (dve) sta bili. - We (two) were. for feminine (aplies for neutral too)
Ona (dva) sta bila. - for masculine.
Oni so bili - they were for masculine or mixed genders
One so bile - They were for feminine
Ona so bila - They were for neutral.
So, duality brings extra challenge …
Oh, and, of course as many Slovenians I speak Serbo-Croatian too. (pure Croatian is a bit different from Serbian and we were taught mixed version of both in ex Yugoslavia.
So, despite is’t not Slovene - Chiers for learning Croatian!
Vrlo dobro i nadam se da nastaviš učiti.