have you / been / long / How / in this school / ?
How long have you been in this school?
fluently / will you / be able to / When / speak English / ?
When will you be able to speak English fluently?
have you known / How / long / your best friend / ?
How long have you known your best friend?
had / have you / your phone / How long / ?
How long have you had your phone?
seen / him / Sara / yesterday / hasn't / since
Sara hasn't seen him since yesterday.
and wave / clap hands / Can you / at the same time / ?
Can you clap hands and wave at the same time?
swim / before / five / Could you / you were / ?
Could you swim before you were five?