Mattingly "AI & Prompt Design" - Introduction to Machine Learning"
Past perfect
1.
2. Past Perfect Conjugation Chart
Subject Pronoun To have (past) Verb (participle) Compliment
I / You / He / She /
It/ We / They
‘d / had worked on the project all day.
been to the meeting.
flown to the corporate
office.
Subject Pronoun To have [-] (past) Verb (participle) Compliment
I / You / He / She /
It/ We / They
hadn’t / had not worked on the project all day.
Affirmative
Negative
3. Past Perfect Conjugation Chart
To have (past) Subject pronoun Verb (participle) Compliment
Had I / You / He / She /
It/ We / They
worked on the project all day?
Wh- Question word To have [-] (past) Subject pronoun Verb (participle)
What
Where
had I / You / He / She
/ It/ We / They
learned?
gone?
Yes / No Questions
Wh- Questions
Short answers
Subject pronoun To have (past)
Yes,
No,
I / You / He / She /
It/ We / They
had.
hadn’t.
4. Past Perfect
Meaning and Use
We use the past perfect to talk abou the relationship between
events in the past. The past perfect indicates that an event
happened further back in the past than another event
(typically in the past simple or past continuous).
We use the past perfect to …
5. Past Perfect
Meaning and Use
1. One thing happened before the other (often using when or by the
time)
By the time I arrived at the business center, the meeting had finished.
John had already left the office when Susy called.
2. Something planned, expected or intended didn’t happen.
The contract was signed before the CEO had agreed to it.
They decided to start production before safety checks had been made.
3. Superlative experiences (ever is commonly used).
It was the best presentation I’d ever done!
She was the kindest receptionist I’d ever met!