●
Before I knew it, the sun was going down.
●
Before I knew it, I was finished with my homework.
●
Before I knew it, summer vacation was over.
●
Before I knew it, the bus had arrived.
●
Before I knew it, I had eaten the whole pizza.
●
Before I knew it, I had become an expert in coding.
●
Before I knew it, the project was due and I was rushing to finish.
●
Before I knew it, three years had passed since I moved here.
●
Before I knew it, the situation had escalated into a major argument.
●
Before I knew it, I was fluent enough to have a conversation in Spanish.
●
Before I knew it, the small startup had evolved into a multi-national corporation.
●
Before I knew it, the initial enthusiasm had been replaced by a sense of disillusionment.
●
Before I knew it, the subtle changes in the climate had become impossible to ignore.
●
Before I knew it, I had been drawn into a complex web of political intrigue.
●
Before I knew it, the conversation had shifted from casual talk to a deep philosophical debate.