Too many people confuse adverbs with nouns + prepositions. So here some of the most useful adverbs or its questions you should know if you want to avoid these confuses.
Когда? (when?) Куда? (which way?) Откуда? (from which...?) Почему? (why?) Зачем? (what for?) and I think these two need explanation:
1. Как? (how?) - mainly with this question Russian words have the end "-о" : Это легко (It's easy), ясно (brightly).
2. Где? (where?) - the adverbs of place point to the place of action. For don't mixing up this one with nouns you should know these words: тут, здесь (here), там (there), слева (on the left), справа (on the right), посредине (in the middle), напротив (opposite), рядом (beside), наверху (above), внизу (below), впереди (in front), позади, сзади (behind), внутри (inside), снаружи (outside).
You could try to make sentences with them just to memorize it. For example:
Внутри (где?) дома грязно (как?) – It’s dirty inside the house.
Сегодня (когда?) я не иду на работу (куда?). – Today I don’t go to the work. (or Today I have a day-off)
Thank you, Very useful
Thank you for this information
so " наречие" in this exemples are :
-Внутри and грязно
- Сегодня and на работу
but на работу seems preposition + noun