Anyone who claims Bulgarian is any easy Slavic language is lying to you
They say this because it has no cases, but it has other shit that is just as bad, or actually worse
You see, every verb is conjugated for person, number, tense, voice, mood, aspect, evidentiality, and gender (male, female, or neuter)
Bulgarian retains the aorist tense from proto-indo-european, which is also found very rarely in Georgian and Armenian, and also in Ancient Greek and Sanskrit
The aorist tense indicates and action that took place once at a specific time in the past but given it's unfamiliar to basically any other living language, it's difficult to get used to
It also has the future-in-the-past tense (and a perfect variation of it) for actions that occured in the past, but after the time at which some other event being discussed occured. Why would you need this?
Even more painful, Bulgarian also has a grammatical feature called "evidentiality" that I mentioned earlier.
This is where verbs are additionally changed according to how it is that you know the action in the sentence occured
There are 4 categories of evidentials:
The indicative (I know the action the verb describes took place because I saw it happen myself)
The inferential (I didn't see it happen, but I saw other evidence that convinces me that it happened)
The renarrative (somebody else told me it happened, and they witnessed it first hand)
The dubiative (somebody else told me it happened, and that person heard it from someone else, and so on)
So - in Bulgarian you cannot ever simply say "the man kicked the ball", or "the dog ate the bone".
You MUST modify the verb every time you speak to explain your source of knowledge
This makes writing fiction in Bulgarian weird... what form or the evidential should the narrator use???
But yeah, all of these features combined, you have hundreds of potential forms for each verb
Maybe not all of them are used, but still, possible to make. It is a nightmare