So 'tato slova nerozumím' just got rejected and I don't know why. Is there a difference between chápat and rozumět?
They require different cases: rozumět + dat vs chápat + acc
I see, thanks.
What would the wording be if you used rozumim? I have tried "Nerozumim techto slov" and some other variations but they were not accepted.
Please see endless_sleeper's comment regarding case and check a resource like this one for dative (and all other) case endings for the word(s) you're interested in. Link: https://cs.wiktionary.org/wiki/slovo.
My mistake, I mistook genitive for dative in endless_sleeper's response.
Thanks and I really like the wiktionary link.