1 a) HAVE YOU BEEN TAKING (How long – typical question)

b) HAVE YOU TAKEN (How many – typical question)

2 a) HAVE YOU EVER CYCLED (Have you ever – typical question)

b) HAVE YOU BEEN CYCLING (We see result now – we want to know about the activity)

3 a) HAS BEEN SKIING (How long)

b) HAS SHE SKIED (How many)

4 a) HAS BEEN WRITING (How long)

b) HAS ALREADY WRITTEN (How many)