Quote Originally Posted by impulse View Post
-why вы получите удовольствие and not (увидет город с реки) получается удовольствие ?
Вы получите (Future Perfective 2 Person Plural) удовольствие - You will get pleasure. It is a transitive verb (Вы - subject, удовольствие - direct object).

Quote Originally Posted by impulse View Post
-why многие красоты and not многие красивость ?
As to me, I have even never heard the word "красивость", it sounds completely awkward to me. Beauty is "красотА" (А is stressed), in plural it is "красОты" (the stress shifts to О), and the adjective "многие" requires plural.

However, Alexsms wrote: "красивость - false beauty, seeming beauty". I believe him, I think it can be used in that sense, but it is a rare usage still.

Quote Originally Posted by impulse View Post
-why не забудьте поесть борщ and not А не забываете чтобы выпить Борщ.?
As it was noted above, we eat суп, щи, борщ and other dishes of that sort, we do not drink them. BTW, we eat it from a big dish with a spoon: http://ru.wikipedia.org/wiki/%D0%91%D0%BE%D1%80%D1%89.

"Пить" is when you take a cup or a glass, lift it to your mouth and just swallow the liquid (e.g. чай, кофе, воду, молоко, сок, пиво, водку, вино etc.).

Did you want to say: "And do not forget to eat борщ"? Then it is imperative. "Не забываете" is not imperative, it is a statement: (You) do not (ever) forget, in present tense.

To forget: забывать (imperfective) - забыть (perfective).

Indicative mood: я забываю (present): I (always) forget; я забуду (future): I will forget.

Imperative mood: Не забывай! (Imperfective: Never forget! - at any occasion) - Не забудь (Perfective: Do not forget - at this specific single occasion).