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Easy to read grammar chart

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Simple past - used for completed action or condition.
We went to the store.
I lived in New York.
I enjoyed the party.

Past continuous - used to describe an action or a situation that took place over a period of time and may continue to the present
or a past action interrupted by another.
Tom was watching TV last night when I called.

Past perfect - formed by the use of had + the past participle to describe an event or situation completed before another or in
reported speech.
By the time I got to the office Tom had gone home.
Jane said that she had gone to her friend’s house.

Past perfect continuous - used to talk about something that had been happening in the past but does not extend to the present.
When I looked out the window I saw that it had been raining. (It wasn't raining when I looked out. It had stopped.)

Simple present - used to talk about present actions or conditions, general truths, habitual action, or future time.
I hear you.
Most shops close at 5:00.
The train arrives at 4:00.

Present continuous - activity in progress or verbs of perception.
I am playing soccer now
He is feeling sad.

Present perfect - used with verbs that began in the past, lead up to, and include the present, to express habitual action, or with
events at an unspecified time in the past.
Tom has lost his key. (He lost it a short time ago and still does not have it.)
He has lived here all his life.
Have you ever been to Tokyo?

Present perfect continuous - for an action that began in the past, has continued to the present and may not be finished.
She has been painting the ceiling.
He has been repairing the car.

Future - for an action that has not happened yet. Often uses will or won't.
You will pass the test.
I will probably be late.

Future continuous - to say that we will be in the middle of doing something at a certain time in the future.
The game starts at 9:00. At 9:30 I will be watching it on TV.

Future perfect - to say that something will already have happened before a certain time in the future.
The game is over at 11:00 so by 11:30 it will have finished.

Future perfect continuous – to note the length of time something will continue to happen in the future.
I will start playing football at 11:00 tomorrow. By 1:00 I will have been playing for two hours.

Changes in sentence meaning.

Simple present
My company installs computers. – This is something my company continually does.

Present continuous
My company is installing computers. – Work being done at my company right now.

Present perfect
My company has installed computers. – The work is recently finished and we are using the computers.

Present continuous
My company has been installing computers. – The computers might not be working yet.

Simple past
My company installed computers. – The work was completed some time ago.

Past continuous
My company was installing computers when it was sold. – The work was interrupted by the sale.

Past perfect
By 1997 my company had installed computers. – The computers were installed before 1997.

Past perfect continuous
Last week my company had been installing computers. – The installation is not complete and is not happening now.

My company will install computers. - The computers are not in the company now.

Future continuous
In September we will be installing computers. – The installation will be happening in September.

Future perfect
By next year we will have installed computers. – The installation will be completed before next year.

Future perfect continuous
In November we will have been installing computers for three months. – At that time the installation has been happening for
three months.
Simple present
active: The company ships the computers to many foreign countries.
passive: Computers are shipped to many foreign countries.
Present progressive
active: The chef is preparing the food.
passive: The food is being prepared.
Simple past
active: The delivery man delivered the package yesterday.
passive: The package was delivered yesterday.
Past progressive
active: The producer was making an announcement.
passive: An announcement was being made.
active: Our representative will pick up the computer.
passive: The computer will be picked up.
Present perfect
active: Someone has made the arrangements for us.
passive: The arrangements have been made for us.
Past perfect
active: They had given us visas for three months.
passive: We had been given visas for three months.
active: You can use the computer.
passive: The computer can be used.
active: They sent the man a package.
passive: The man was sent a package.
active: Their friends often take them to interesting places.
passive: They are often taken to interesting places by their friends.

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