Forms
Put the following sentence into the past perfect tense: She (meet) him before the meeting.
"She had met him before the meeting."
In 2010, he had taken his computer apart because he had spilled a drink on it.
In 2010, he had not/hadn't taken his computer apart because he had not/hadn't spilled a drink on it.
Last year Juan passed all his exams.
PAST SIMPLE
Which is the past participle form of these verbs: be-forget-leave
He had totally forgotten about the bitcoins.
He had not/hadn't totally forgotten about the bitcoins.
I opened my handbag to find that I had forgotten my credit card.
PAST PERFECT
Re-order the following sentence: times/bitcoins/bought/he/several/had.
"He had bought bitcoins several times."
Fortunately, he had saved his data.
Unfortunately, he had not/hadn't saved his data.
It hadn't rained all summer, so the grass was completely dead.
PAST PERFECT