1.We are friend for ten years - ja bym to napisała tak : We have been friends for ten years.
2.I have never convene - jeśli to jest Present Perfect to powinno być : -ed : I have never convened.
3.Even she is very busy - Even if she is very busy.
4.She always find a bit of time to talk with me - to bym napisała tak : She always finds a little bit of time to talks with me.
5.She always tell what she think - czas Present Simple, więc -es, -s : She always tells what (i tu nie jestem pewna): she is thinking lub she thinks.
6.We haven't any secrets and know about we everythink : We haven't any secrets and know about us everything.
7.Kasia know what is her thirsts and she always tendet at purpose - napisałabym to troche inaczej : Kasia very good knows what she wants to do and she pursues a goal.
8.One of her good features of characters is sense of humor - w brytyjskim jest : humour a zamiast 'one' mogłoby być : 'next' ;)
9.On hard situations she can {?załagodzić?} stress and everythink do a joke. - In difficult(może być też hard) situations she can reduce stress and makes a joke out of everything.
10.Willfully (chętnie) she help her friends and she don't want anythink replacements(w zamian). - She helps hers friends with pleasure and she doesn't want to anything in exchange.
11.J never convene on her and i think it's very lucky have the friend like Kasia. - I have never convened on her and I think it's very lucky have friend like Kasia.
Mam nadzieje, że w większości jest dobrze ;) jak coś to jeszcze mozna wtrącić małe poprawki. Pozdrawiam ;)