| 21. | You mean when used in the vocative sense of'O, Caesar '?
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| 22. | Irregular vocatives exist as well, such as nom . ????????, voc . ????????.
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| 23. | Proper nouns usually also have vocative forms, even though they are used less frequently.
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| 24. | Proper nouns are never placed first in the sentence, except in a vocative sense.
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| 25. | The vocative is distinguished from the nominative in the case of only a few nouns.
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| 26. | But interjections may express commands too, and it seems to me so do vocatives.
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| 27. | This happens because the vocative is often perceived as very direct and thus can seem rude.
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| 28. | As specified above, the vocative case in Romanian has a special form for most nouns.
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| 29. | No prepositions are matched with the vocative, because it is used for addressing people only.
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| 30. | In many cases this means that ( in the singular ) masculine vocative expressions resemble the nominative.
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