Provide the genitive plural form of the nouns phrases below... Remember!

1. "Kill-Fill" when the form ends in -k, and obey the spelling rules.

2. Nouns ending in -ия and -ие are regular, you get "nothing for something," but all such nouns end in -й (здание-->много зданий). 

3. The "something for nothing" nouns (mostly masculine ends with "nothing" on their stems) that end in a husher (ш, щ, ч, ж) or the soft sign (ь) get -ей as their ending in the genitive plural (вещь --> вещей)... all other nouns that get something get -ов. 

Много...