b. Negative
She had not finished her work before she left the office.
They had not studied for the test before it was announced.
I had not eaten breakfast when I left for work.
The movie had not started by the time we got to the theater.
He had not completed the assignment before the deadline.
They had not cleaned the house before the guests arrived.
She had not practiced piano enough before the concert.
The train had not left the station before we got there.
They had not made any plans before the weekend.
He had not written the report before the meeting.
Baca Juga: 30 Contoh Kalimat Past Perfect Continuous Tense: Positif, Negatif, dan Tanya