Some examples and use cases from the internet:

Some examples and use cases from the internet:

• So, how long had you been getting readings from Patrick Zelman, Dr. Newhall?
• And how long had you been involved with her?
• And how long had you been in the room?
• How long had you been seeing Mrs. Rheiman?
• At the time you investigated the Harrot murder, how long had you been employed by Las Vegas PD?
• How long had you been using his service?
• How long had you been gone?
• And how long had you been renting a room from Edith?

• For how long have you been studying Esperanto?
• So, how long have you been manager, Greg?
• how long have you been friends with lex luthor?
• Anna, how long have you been...
• Exactly how long have you been sober?
• Anna, how long have you been...
• So Frank, how long have you been driving?
• So, Lieutenant, how long have you been...