Past Perfect

http://www.members.iinet.net.au/~adelegc/grammar/past_perfect/past_perfect_neg.html


In this exercise, you will practise forming the past perfect. Based on the example sentence, complete the past perfect sentence by filling in the spaces. You can use the full form or the contracted form.
For example:First, I washed the car. Then, I drove to the mall. -->
"After I had washed the car, I drove to the mall."

http://web2.uvcs.uvic.ca/elc/studyzone/410/grammar/pastpf2.htm