て形の表現N4
〜ていく
go and do... / gradually become...
Structure
V-て形 + いく
Explanation
Attached to the te-form of verbs, 〜ていく expresses: ① doing something and moving away from the speaker; ② a process continuing or changing toward the future. Contrasts with 〜てくる.
Examples
鳥が遠くへ飛んでいきました。
The bird flew away into the distance.
日本語の勉強をこれからも続けていきたいです。
I want to keep studying Japanese from now on.
Note
〜ていく emphasizes progression from now toward the future; 〜てくる emphasizes change from the past to now. In speech, 〜ていく is often shortened to 〜てく.