How long ... you ... (sleep)?
did / sleep
How long ... you ... (use) your phone yesterday?
did / use
How long ... you ... (spend) on your way to school?
did / spend
How long ... you ... (be) awake?
have / been
How long ... you ... (study) English?
have / studied
How long ... you ... (live) in this country?
have / lived
How long ... you ... (know) your best friend?
have / known