a. Rachel always worryis worryingworries�a lot about everything.
b. Why�have you calleddid you calldo you call me yesterday?
c. Which book�did you readwere you readingdo you readare you reading at the moment?
d. Yuk! These bananas�haven't tastedaren't tastingdon't taste very good.
e. John�talkedwere talkingis going to talkwas talking to Sam when I saw him.
f. I�wasn't surfingdidn't surfhaven't surfed the internet at 10:30 last night.
g. Jane�s not here. She�is going to gowenthas gonegoes to Paris for the weekend.
h. I�didn't seehaven't seenwasn't seeingam going to see my friends yet. I hope to meet them tomorrow.
i. My parents�are marryinghave marriedhave been marriedmarry for 26 years. They celebrate their anniversary next week.
j. If they won't hurry updon't hurry uparen't hurry upwouldn't hurry up, they�ll miss the film.
k. He can�t come to the cinema tonight. He�is going to visitvisitedwould visitwas visiting his aunt.
l. If it�waswould beweren'tisn't so hot, we�d play outside.
m. My mum�will not leaveisn't going to leavewouldn't leavedidn't leave her job if she won the lottery.
n. Coca-Cola inventedwas inventwas inventedis inventing�by John Pemberton.