Quote Originally Posted by Antonio1986 View Post
1. The word примет which is the opredelennaya forma of this verb?
I don’t know what определённая форма is. If you mean неопределённая форма (infinitive), it’s принять.
Imperfect infinitive is принимать.

Quote Originally Posted by Antonio1986 View Post
2. The word приемлют which is the opredelennaya forma of this verb?
Oh, I’m not sure if it exists in modern language.
Usually, the word is used in personal forms:
я приемлю
ты приемлешь
он приемлет
мы приемлем
вы приемлете
они приемлют

Btw, the word is a bit old-fashioned. Is’s used not very often.
Word using by year graph.