The names belonging to the first declension
For the first type tend names of masculine kind with a zero ending in the nominative case. For example, the surname belongs to the first type of declension and has the following case forms: nominative - Petrov; in genitive – Petrova; dative – Petrov; accusative – Petrova; by – Petrov; prepositional – (o) Petrov. Leaning mostly as nouns in the instrumental case these names have endings like adjectives masculine.
For the first type leaning and foreign language names that end in hard consonant sound, although in their native language, they are inclined very differently. Examples of such foreign names like Sawyer, Kipling, Balzac, etc. However, in contrast to the Russian sklonennyh names with hard consonants at the end, foreign bow and as nouns.
Names that are related to the second declension
The second type of declension are names of feminine and masculine ends in-a (-I) in the nominative case. It is such names as Venison, Lavrov, Akhmatova. Thus in the nominative, accusative and instrumental cases, they have endings as nouns, and in other cases – like adjectives. For example, the name "Lavrov" is disposed as follows: nominative - Lavrov; in genitive – Laurel; in the dative – Laurel; in accusative – Lavrov; in instrumental – Laurel; in the prepositional of the Laurel.
A number of Russian and foreign names do not change on cases. To are indeclinable surnames female ending in a consonant sound. It is such names as Kohut, Steel, Mueller, etc.
Indeclinable are also Slavic names ending in-on, -ako, -Jago, -s -, - ovo. Examples include such names as Shevchenko, Violent, etc.
The category of indeclinable surnames are complementary and are in tune with the name of animals or objects names as Deer, Duck, etc. This is primarily due to the fact that when you decline they create a comic effect: the value of names identified with the individual.
Foreign names that end in a vowel sound, not too lean. As example we can cite such names as Zola, Nove, Schultz. With the exception of surnames ending in unstressed vowels -a, -I.