Search:

Yes yes. ok . THANK YOU . it is much more clear now. =) Thank you friend.

sorry ?? =) didn't understand buddy. can you please give me some examples.

Hello friends. i have a question , well, it maybe simple for you but :P i really don't understand the diffrent.
For example :

бегать - побежать  (to run) быть - побыть  (to be)
видеть -...