Искать
to swear
01
клясться
to state that what one is saying is true
02
ругаться
to use offensive or vulgar language in order to express strong emotions
03
ругаться
to strongly promise something, usually in serious or formal situations
04
клясться
to require someone to make a formal declaration or promise while invoking a sacred or binding authority
Пример
She swore on her professional reputation that the data was accurate.
I swear.
The witnesses in a sensitive criminal case were sworn to confidentiality.
The soldiers swore an oath to abide by their commander's orders.
The team is swearing to uphold the integrity of their project.