Hello, dear student!
Today we are going to talk about adverbs, specifically the following adverbs:
Сколько стоит? [skol'ka stoit?] - How much/many does it cost?
Сколько времени? [skol'ka vremini?] - What time is it?
Как долго? [kak dolga?] - How long?
We use the word "сколько" to ask and get to know the information about quanity. Using the figures 2, 3 and 4 as notional numbers or a part of bigger numbers, we use nouns in the genitive case. For example:
Я работал всего три часа [ya rabotal fsivo tri chisa] - I worked only 3 hours.
In this sentence we have the number 3 and the following number "час" [chas] (hour) which has the form "часа" [chisa] in the genitive case (Сколько? - How much? три - three, Чего? - What? часа - hours)
The following numbers require after themselves genitive case in plural:
- Numbers from 5 to 20
- Numbers ending with 5, 6,7,8 or 9
- Dozens, hundreds etc.: 10, 20, 100, 1000..
- Words "много" [mnoga] - much/many, "мало" [mala] - few/little, "сколько" [skol'ka] - how much/many, "несколько" [neskal'ka] - some/several.
Восемь рублей! [vosim' rubl'ej] - Eight rubles!
In this interrogative sentence we have the adverb "сколько", in the response - "восемь рублей", after the figure 8 we use the noun in the genitive case, plural.
Let's look at some more examples:
Как долго вы живёте в Москве? [kak dolga vy zhiv'ot'e v Maskve?] - How long have you lived in Moscow?
Уже семь лет [uzhe s'em' let] - Already 7 years
Сколько времени потребуется для этого? [skol'ka vremini patrebuitsa dl'a ekhtava?] - How much time does it need?
Десять часов [des'at' chasof] - Ten hours