Past

• Simple Past - Began and ended in the past
• Past Perfect - occured before another past event
• Past Continuous - Began in the past, continues for a length of time, and ended in the past.
• Past Perfect Continuous - Began in the past, continued for a length of time, and was in progress when another past event happened.
• Before we realized the error the team had completed the project based on the wrong data
• She didn't discover the missing keys until she had already left the house.
• While he was working on his project, the power went out.
• By the time she returned from her trip, she had been working for three months.
• The tree grew significantly taller over the past year.