To be proud
The German phrase 'stolz sein' is used to express the feeling of pride. It is a direct translation of 'to be proud' in English. The word 'stolz' means 'proud' and 'sein' is the infinitive form of 'to be'. This phrase is used in the same context as in English, often to express satisfaction or pleasure in one's own or another's achievements.
I am proud of my work.
This German phrase uses 'stolz sein' as 'stolz auf something', conveying the pride one feels for something specific, in this case, work.
He should be proud of himself.
This phrase used 'stolz sein' in the structure 'stolz auf somebody self', indicating the subject should be proud of their own self, as an affirmation and acceptance of self-worth.
We are proud that we achieved this.
The German phrase uses 'stolz sein' in its compound form 'stolz darauf, dass', indicating pride in succeeding or accomplishing a task or goal.