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Hello, everyone. You're back with me new at Anglo-link. This is the third video in our learning the tenses series

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If you haven't watched the first two videos you may want to go and watch them first

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In this third video. I'm going to help you understand the differences between

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Present perfect continuous, "I have been doing" and present perfect simple "I have done"

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When you're ready we can get started.

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Right then

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Present perfect continuous and present perfect

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Let's look at the formulation of the two tenses

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In the previous video we looked at how to formulate present perfect continuous

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Let's remind you

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I have been playing tennis

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So the verb "to be" conjugated

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in the present perfect and then the main verb with "ing"

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You have been playing tennis

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He/she has been playing

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We, you and they have been playing

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Let's look at present perfect

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no continuous

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So it's just the verb "have" and the participle:

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I have played tennis

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Easy

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You have played tennis

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He/she has played

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We, you and they have played

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Right let's look at usage

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First a reminder: When we use the present perfect continuous,

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action that started in the past and is still in progress

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For example:

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I've been studying all morning

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I've been doing the exercises since 11 o'clock

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He has been driving for five hours

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Let's look at some examples of the present perfect and how they are different from the ones

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You've just looked at

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So

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The present perfect refers to a completed action

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An action that's complete at the time of speaking. It's not going on anymore

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Look at the first example:

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I've studied three sections until now

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Let's look at the two sentences together:

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So

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I've been studying all morning

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that means

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You started this morning, and you're still studying

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Within this time you have completed, you have finished three sections

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Now this is present perfect:

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I've studied three sections until now

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Next example

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I've already done half of the exercises

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Let's look at the present perfect continuous:

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I've been doing the exercises since 11:00

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So you started at 11:00, and you are still doing the exercises

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But within this time you have already finished half of them

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Present perfect:

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I've already done half of the exercises

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And the last example:

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He has driven 500 kilometers so far

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Look at the continuous form:

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He has been driving for five hours

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He is still driving

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Within this time he has completed 500 kilometers of driving

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By the way, so far is a synonym for until now

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Let's look at the timelines now to make it perfectly clear for you

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What the difference is between the two tenses are

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Right

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Here is the timeline for present perfect continuos

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An action that started in the past

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Has been going on until now

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It's still going on

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and will go on for a while

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Remember that you can refer to this tense with these two words since and for

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Since indicates the exact time that the action started in the past

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And for tells us how long the action has been going on

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Let's have a look at the timeline for the present perfect, and you will see that it will look very very different

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Here's an action that happened in the past

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It's a completed action at some point in the past

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we don't know exactly when or we don't want to say exactly when

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What's important is that the action is complete

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now at the time of speaking

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Right then

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Let's look at some common mistakes

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You may say or hear I have waited for half an hour

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Because you're still waiting

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The action is still going on. You should use the present perfect continuous

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I have been waiting for half an hour

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The action is not complete yet

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Let's look at another example:

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You may hear or say he has slept since 9 o'clock

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Once again because the action is going on, is still in progress. He is still sleeping

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We should be using the present perfect continuous

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He has been sleeping since nine o'clock

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Sometimes you may make the reverse mistake

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For example you may hear or say:

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Has been snowing twice this week

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Now the word twice

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means two times

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Indicates two finished completed actions

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It snowed once, stopped. Is snowed again and stopped

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It's not snowing at the moment

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Therefore we need to use the present perfect

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It has snowed twice this week

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One last example to make sure you really got the difference between these two

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You may say:

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She has been writing many books

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It's okay to say she has been writing for many years. She is a writer

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But to say the number of books she has already written

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referring to completed books

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You need to use the present perfect

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She has written many books

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Right

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That's it for our third video

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I hope you have found it useful as you know you can now go to our website anglo-link.com

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To read the explanations and do the exercises that will help you review this point

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Thank you very much for watching and I'll see you in the next video. Bye now