vouched russian
руча́вшийся
vouching, guaranteeing, who vouched for, who guaranteed
поручи́вшийся
who has vouched, who has guaranteed, stood surety
поруча́вшийся
who vouched for, who guaranteed, who took responsibility for
Examples
Сосед, ручавшийся за нас, оказался прав.
The neighbor who had vouched for us turned out to be right.
Друг, ручавшийся за него перед банком, ничуть не сомневался.
The friend who had vouched for him to the bank had not the slightest doubt.
Поручившаяся за студента учительница была спокойна.
The teacher who vouched for the student was calm.



















