Good morning/afternoon/evening! 

My dear students, I want to apologize for my long absence. I guess that I had had the flu. For one month I did not feel well, and I frequented the hospital.

The last week, when I felt worse, I decided to meet one of my students who is a medical doctor now. She examined me thoroughly, and she gave me a strange piece of advice. She said that I had to have a walk every day; I had to make pauses every half an hour when I use my laptop. I could not believe. However, I tried.

What I would like to advise you is to have a walk at least once a day, for 20 minutes minimum. Just give it a try. You can have a walk after or before your English homework. I hope that my easy homework won’t take more than half an hour, and you could see something else, but not your computers.

Finally, let’s start with your exercises!

Change to Present Perfect (some of my phrases are not used in correct grammar; I have written them as an example):

• We are three years passed by. – We have been students for three years now.
• I did a lot of things.
• Did they find the umbrella?
• She had walked there before us.
• You had tried everything.

Change to Present Perfect Continuous:

• I was studying for two hours. – I have been studying for two hours.
• We were talking without any break during the whole day!
• You are waving hand to the crowd of strangers.
• She is looking through the window.
• They were creating new projects.

Change the sentences to Past Perfect:

• She has done her exercises. – She had done her exercises.
• We have trained a lot!
• They have done many exercises.
• I haven’t come to their place.
• Have you thought about that case?

Change the sentences to Past Perfect Continuous:

• They have been dancing. – They had been dancing.
• I have been swimming in the pool.
• You have been talking to me.
• She has been changing her dresses.
• We have been walking in the garden.

Find out the grammar for this lesson here.

You will find more exercises and more practice here.