Correct: I was reading the specifications at 3pm yesterday, I came to the office and checked the email, From 3 to 6 pm they were negotiating the deal, She forgot her password and login last week, My mentor helped me fix the last issue, Incorrect: I read the specifications at 3pm yesterday, I came to the office and was checking the email, From 3 to 6 pm they negotiated the deal, She was forgetting her password and login last week, My mentor was helping me fix the last issue,

Past Continuous and Past Simple

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