# Polish/Masculine noun declension

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# Masculine noun declension

There are three masculine genders in Polish – masculine personal, masculine animate and masculine inanimate. The differences between them are regular:
* In the case of masculine personal, the accusative has the same form as the genitive
* In the case of masculine animate, the accusative has the same form as the genitive in the singular, but as the nominative in the plural
* In the case of masculine inanimate, the accusative has the same form as the nominative
* Vocative singular is always the same as locative singular and vocative plural is the same as nominative plural.
But there are also some other differences in declension. Before they get explained, let's take a look at some examples.
| Masculine personal | Boy | Boy | Farmer | Farmer | Chris | Chris | Guy | Guy | Engineer | Engineer |
| Masculine personal | Singular | Plural | Singular | Plural | Singular | Plural | Singular | Plural | Singular | Plural |
| Nominative | Chłopak | Chłopaki | Rolnik | Rolnicy | Krzyś | Krzysie | Facet | Faceci | Inżynier | Inżynierowie or Inżynierzy |
| Acc./Gen. | Chłopaka | Chłopaków | Rolnika | Rolników | Krzysia | Krzysiów | Faceta | Facetów | Inżyniera | Inżynierów |
| Dative | Chłopakowi | Chłopakom | Rolnikowi | Rolnikom | Krzysiowi | Krzysiom | Facetowi | Facetom | Inżynierowi | Inżynierom |
| Instrumental | Chłopakiem | Chłopakami | Rolnikiem | Rolnikami | Krzysiem | Krzysiami | Facetem | Facetami | Inżynierem | Inżynierami |
| Locative | Chłopaku | Chłopakach | Rolniku | Rolnikach | Krzysiu | Krzysiach | Facecie | Facetach | Inżynierze | Inżynierach |
| Vocative | Chłopaku | Chłopaki | Rolniku | Rolnicy | Krzysiu | Krzysie | Facecie | Faceci | Inżynierze | Inżynierowie |
| Masculine animate | Cat | Cat | Dog | Dog |
| Masculine animate | Singular | Plural | Singular | Plural |
| Nominative | Kot | Koty | Pies (help·info) | Psy |
| Accusative | Kota | Koty | Psa | Psy |
| Genitive | Kota | Kotów | Psa | Psów |
| Dative | Kotu | Kotom | Psu | Psom |
| Instrumental | Kotem | Kotami | Psem | Psami |
| Locative | Kocie | Kotach | Psie | Psach |
| Vocative | Kocie | Koty | Psie | Psy |
| Masculine inanimate | Computer | Computer | Table | Table |
| Masculine inanimate | Singular | Plural | Singular | Plural |
| Nom./Acc. | Komputer | Komputery | Stół | Stoły |
| Genitive | Komputera | Komputerów | Stołu | Stołów |
| Dative | Komputerowi | Komputerom | Stołowi | Stołom |
| Instrumental | Komputerem | Komputerami | Stołem | Stołami |
| Locative | Komputerze | Komputerach | Stole | Stołach |
| Vocative | Komputerze | Komputery | Stole | Stoły |
Phonetic changes and irregularities are:
* All "e" (or "ie") and "o"/"ó" changes in the singular nominative, and also the accusative if it has the same form as the nominative.
* The plural nominative isn't very regular. In the case of some nouns softening of the final consonant may be required. Some nouns even have two correct plural nominative forms – one with "owie" and another in a soft "e".
* Some nouns have a singular locative in "u", other have in "e", and in the case of the latter the final consonant group must be softened.
* Very few masculine nouns have a singular dative in "u" instead in "owi". However, they are really common words - Pan (literally lord, nobleman, master - a very important word because it is used exactly as the English pronoun "You" to express politeness e.g "Podać Panu kawę? Could you take some coffee, sir?) brat (brother), kot (cat), pies (dog) and Bóg (God). As you see, apart from unusual dative ending in all of them declension is connected with unpleasant stem alternations, resulting from various historical processes e.g. consonant cluster softening, compensatory lengthening, development of Slavonic semi-vowels (jery)
* Some inanimate-masculine nouns have a singular genitive in "u", most others in "a".
Now some sentences:
* Adam jest rolnikiem - Adam is a farmer. (farmer in instrumental)
* Facet daje kotu mleko - The guy gives milk to the cat. (cat in dative)
* Chłopak nie ma psa - The boy doesn't have a dog. (dog in genitive)
* Pies jest pod stołem - The dog is under the table. (table in instrumental)
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