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Teacher cue
B1 · English Grammar

Past
Perfect

The action that happened before another past action.

had already before by the time
The idea

What is the past perfect?

It shows that one past action happened before another. We use it to put two past events in the right order.

Examples

She had already left when I arrived.

By the time the film started, we had found our seats.

The structure

had + past participle

Marks the earlier of two past actions.

The order of events

Which tense for which event?

earlier action — had + past participle later action — simple past

When I arrived, she had already gone home.

She left first. Then I arrived.

He had never seen snow before he moved to Canada.

He moved to Canada. Before that, no snow.

They had finished dinner by the time the guests arrived.

Dinner was finished first. Guests arrived second.

💡 Handy shortcut

Already, never and just go right after had.

She had already finished when I called.

He had never tried sushi before that night.

In real sentences

The signal words that call for it

by the time

By the time we got there, the show had already started.

after

After she had read the instructions, she assembled the furniture.

no signal word

I realized I had forgotten my keys.

before

He had never tried sushi before that evening.

⚠ Watch out

Common mistakes

When I arrived, she ^ already left.

When I arrived, she had already left.

He had went to bed before midnight.

He had gone to bed before midnight.

By the time she called, I had fell asleep.

By the time she called, I had fallen asleep.

She hadn't never visited Paris before that trip.

She hadn't visited Paris before that trip.

Now it's your turn

Let's
practice.

Say the answer out loud — then tap to check.

Practice 1
tap the blank to reveal

Choose the form

By the time the ambulance arrived, the doctors(already / treat)the patient.
She felt sick because she(eat)too much at the party.
He(never / try)sushi before he visited Japan.
(have)you already finished the report before the meeting started?
They realized they(take)the wrong train.
Practice 2
tap a sentence to reveal the error

Spot the mistake

By the time we arrived, the film hadA already beganB, soC we missed theD first ten minutes.

Balready began → already begun

✓ had + past participle

She had studiedA French for three years beforeB she moved to Lyon, whereC her cousins livesD now.

Dlives → live

✓ her cousins is plural → live

When I have arrivedA at the station, the train hadB already leftC, soD I took a taxi.

AWhen I have arrived → When I arrived

✓ past simple for the later action

Practice 3
tap to reveal a model answer

Complete the sentence

By the time we arrived,
Before the exam,
He hadn't met her
I realized
Speak & write

Your turn — finish each one

Answer in a full sentence using had + past participle.

Tell me something you had already learned before you started school.
Describe a moment you realized you had forgotten something important.
What had you never tried before last year?
What had already happened by the time you got home yesterday?
Recap

Remember this

Earlier action
had + past participle
Later action
simple past
Signal words
before · after · by the time
Watch out
gone, not went

The earlier event always takes 'had' — even when it's written second.

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