Slovio uses -s suffix for plural which is completely weird in any slavic language, -i would be much more natural (ulcas, domis, glovis vs ulci, domi, glovi) and that is what another panslavic language interslavic/Medžuslovjansky uses (ulici, domi, glavi): http://steen.free.fr/interslavic/
I'm only familiar with Russian, but "es" for "to be" feels weird too. And it's used where Russian would just omit it. Are there Slavic languages that are more liberal with it? And I feel like some form of Cyrillic would be much more natural both because of the available phonemes and because I believe most Slavic speakers would be more familiar with it than the Latin alphabet. As a non-native learner, I've always had…
in south slavic family there is a one-to-one mapping between cyrilic and latin scripts. in serbia, for example, both scripts are official