ręczyć za 用英语:

I can vouch for his reliability.

Sorry, I can't vouch for Anna because I've never met her.

The accused will answer for his actions in the highest court in the land.

You can't make me answer for his mistakes!

I can answer for her qualifications in the field.

I can answer for myself.

Do you think parents should have to answer for their children's behaviour?

Somebody will have to answer for all the damage that has been caused. I can answer for his honesty.

1) Normally parents have to answer for their children's behaviour. 2) I agree, but I can't answer for my associate.

Their coach must answer for the team’s poor performance.

Somebody will have to answer for all the damage that has been caused.

I can answer for his honesty.