No important national language, at least in the Occidental world, has complete regularity of grammatical structure, nor is there a single logical category which is adequately and consistently handled in terms of linguistic symbolism.
Hebrew in America has a bemusing past. The Puritans, out of scriptural piety, once dreamed of establishing Hebrew as the national language.
As a matter of fact, a national language which spreads beyond its own confines very quickly loses much of its original richness of content and is in no better case than a constructed language.