• I haven't seen didn't see the new Michael Cera movie yet.
• She has been was my close friend since 1999.
• Sarah worked has worked in the hospital for 10 years now.
• Who did you see have you seen last night?
• My mom was has been in a meeting for the last two hours. When's it going to finish?
• How many exams did you fail have you failed last year?
• I have found found this cap last week. Is it yours?
• Did you leave Have you left your phone at school yesterday?
• Who was that boy? I have never seen never saw him before.
• Have you seen Did you see my dog? I can't find him anywhere!