Past perfect
Classified in English
Written at on 
English with a size of 2.64 KB.
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Reported speech:
Present simple-past simple
Present continuous-past continuous
Past simple-past perfect
Present perfect-past perfect
Past perfect-past perfect
Will-would
Be(present)going to- be(past)going yo
Can-could
Must go-had to
Place:
Here-there
This-that
These-those
Time:
Today-That day
Now-in this moment/then/in that moment
Yesterday-the previous day/the day before
Last...(week)- the (week) before
Tomorrow- the following day/the day after
Next...(week)- the following (week)/the(week) after
Modales:
Can: Daniel can swim 10km.
The nurse is busy and can't help me.
Could: She could ride a bike when she was ten.
Could you please answer my question?
Should: You should go to the clinic.
He shouldn't jog alone.
Must: You must take these pills
Mustn't: You mustn't eat sugar.
Have to: You have to exercise regularly.
You don't have to buy a new phone.
Does she have to go to hospital?
May: May I close the window?
I may see Julie later.
You may not leave the room.
Might: Your allergy might go away.
He might not get the job.
Gerunds:
I enjoy listening to the radio.
Sue can't stand writing e-mails.
Shopping online is vey convenient.
I'm interested in studying via Skype.
Infinitives:
He agreed to phone me before he left.
Mark promised to take Sheila to the new restaurant.
It's hard to live without my computer.
She decided not to go London.