I don't understand why I cannot create this expressions even if they are so easy.
1. Now I am working mainly in London (i.e. I am working and in other countries but most of the time I am in London)
2. I was confused. I apologize. This happens very often due to my low level in Russian = я запутался. прошу прощения. это случается очень часто из-за моего низкого уровня.
3. I was working until now = я работал пока сейчас
4. Our bargaining power as country/company/group has increased dramatically = ... переговорная сила ...
5. I understand that the price is high. But I think we can bargain it.
6. You shouldn't have even ask for this. It is granted (i.e. a right) = ...это разумеется
7. For me the most important is that you start be more aggressive with the buyers= самая важная для меня это что ты начинает быть более агрессивный с другими / самя важная для меня, что ты начал ... / самя важная для меня является то, что ты начает быть ...
8. Many times I wonder how difficult is the job I am doing and why still I am doing it = иногда спрашиваю себя сколько трудна работа я делаю и зачем я еще делаю ее (The impressive is that I know all the words but for me the creation of this sentence is impossible ... the most scary part is that I don't understand why is so difficult)
9. Independently of how clever you are, I think that in this case you have done a fatal mistake =
10 I don't remember whether we have referred to this issue = Ne pomniu, razgovarivali li mi ob etoi teme.
11. How often does this happens (i.e. the neighbor to wake up very early and play the violin)