6th Grammar present perfect still, for, since.

old Isince II Iplayed Ihockey II Iyears Iwas Ihave Isix. I

to Ihaven't Istill Ithe Ibeen Imountains II. I

I Ifor Ihave Islept Ihours Ithree. I

o'clock T10 Tfor Ttrain Twaited Tthe Thave TThey Tsince. T

studied WEnglish Whaven't WWe Wstill. W

has SShe Sminutes Sthirty Ssung Sfor. S