en_tn/pro/17/12.md

a bear robbed of her cubs

This can be stated in active form. AT: "a bear who has just lost her cubs" (See: rc://en/ta/man/translate/figs-activepassive)

in his foolishness

The word "foolishness" can be expressed as an adjective. AT: "who is acting foolish" (See: rc://en/ta/man/translate/figs-abstractnouns)