複合動詞N4
〜つづける
to keep doing... / continue doing...
Structure
V-ます形（語幹）+ つづける
Explanation
Attached to the masu-stem of verbs, 〜つづける expresses the continuation of an action or state, "to keep doing..." (e.g., 働きつづける).
Examples
彼は一時間も話しつづけました。
He kept talking for a whole hour.
毎日運動をつづけています。
I keep exercising every day.
Note
〜つづける emphasizes uninterrupted continuation, the counterpart of 〜だす. Related to the independent verb 続ける.
Related Grammar
〜だす〜はじめる