How to Ask Questions of the Form:'how long have you (been)...?

• John Francis

Here are clear examples on how to ask questions of the form:'how long have you (been)...?'. Many people often mistakes when trying to ask questions in this form.

• How long have they been married?

• How long have they had their car? (Don't use do they)

• How long have you been driving? 'Since I was 20'.

• How long have you known Jane? (Don't use have you been knowing)

• How long have you been working / have you worked here?

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