Grammar › N4 · 02 Favors, passive & causative
〜てあげる: do for someone
N4 · 02 Favors, passive & causative
Does something for another person's benefit.
Verb te-form + あげる. The doer is the subject. Toward superiors it sounds condescending; use 〜てさしあげる or avoid it. Often the favor is left unsaid.
Examples
友達に傘を貸してあげた。
I lent my friend an umbrella.
弟に宿題を教えてあげます。
I will help my younger brother with his homework.