почела

In a sentence

• Она је почела да чита нову књигу.

  She started reading a new book.

  Here, 'почела' is part of the past tense construction, indicating the third person singular feminine subject starting an action (to read).

• Јесен је почела са кишама.

  Autumn started with rains.

  In this sentence, 'почела' is used to describe the beginning of a seasonal event, emphasizing the start of autumn.

• Почела је да се интересује за уметност.

  She began to take an interest in art.

  Here, 'почела' signifies the initiation of a new interest or involvement by the subject.