Not much new here except the masculine singular personal pronouns _is_ (nom.) and _ejus_ (gen.). But make sure you've got not only those, down, but everything else! If you haven't got these forms at your fingertips, you'll be crippled, while if you do have them, you'll know what's going on, will be able to understand and also to express yourself, and you'll get pleasure, enjoyment and satisfaction from the undertaking.