zobowiązała Englisch:

I undertook responsibility for him.

I unwillingly undertook it.

The government undertook a drastic reform of parliament.

I pledged my loyalty to him.

pledged = made a serious promise

The rich countries have already pledged and promised a hundred billion dollars a year

She pledged herself never to do it again.

In its "Eleven Five Plan" (2006 to 2010), the Ministry of Industry and Information Technology pledged to implement phone connections in every village and Internet connections in every town.