Indicates the starting point or time from which something begins.
When to use
emphasizing start time, explaining state change, answering questions
The nuance
Attach -(으)ㄹ 때부터요 to the verb or adjective stem to express the starting point or when a state began to change. Use '-ㄹ 때' if the stem ends with a vowel, '-을 때' if it ends with a consonant. '부터' marks the starting point clearly. It is commonly used in answers to questions about when something started.
