When the bus finally turned up, I was waiting nearly an hour.
To sum it all up, always use was for the past indicative first and third-person singular. That goes for whether it's a simple verb or auxiliary. “I was ready to watch the Auburn Tigers win the game,” and “He was watching number two score the winning touchdown.”
"Used to" means it was a repeated habit or condition of the past. That is what you want in your sentence. "Was used to" means that you were comfortable with/familiar with/accustomed to something.
Learn more about sentences here https://brainly.com/question/552895
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