įsitikinęs

In a sentence

• Aš esu įsitikinęs, kad viskas pavyks.

  I am confident that everything will work out.

  The usage of "įsitikinęs" here denotes a strong personal belief or certainty about the outcome of a situation.

• Ji buvo įsitikinusi dėl savo sprendimo.

  She was confident about her decision.

  Here, "įsitikinusi" is the feminine form, showing certainty or firmness in one’s decision or choice.

• Mes įsitikinome jo kompetencija po to pristatymo.

  We became convinced of his competence after that presentation.

  In this case, "įsitikinome" is used as a verb, indicating the process of becoming convinced or assured about someone's abilities.