The police (look) .....has looked....... for the murderer for some days but they (not find) .....haven't found.. him yet
After John (wash) ......has washed......... his clothes he begins to study
Jane will  play chess after she (finish) ........has finished....... school work
She sat near the window whenever she (be) ..was........ on board
The thief was arrested as he (leave) .....left........ the bank
He (work) ..was working...... when I (come) ......came.... in and he (obviously / work) .....was obviously worked........ for a long time
I'm waiting up her with Tony, but Sandra has .....already. gone (yet / aleady / still / once)