Rob the teacher talks about using the past simple and the present perfect.


 Watch the video and then do the tasks.



thanks for the explanation!!!

okay now i understand :)
thank you very much Peter M

hello sir
in the task 3 there is a question If you don't understand what someone is saying, you can say:I'm sorry, I haven't understand.
I'm sorry, I don't understand.
I'm sorry, I can't understand.
i choose the third option...
but at the end when i checked the result my answer was wrong...
i don't know why because i have heard people use this sentence I can't understand you...
please correct me if i'm wrong

Hello arzoo kazimi,

The normal response when we hear something but doesn't understand it is to say 'I don't (didn't) understand' not 'I can't (couldn't) understand'.

Generally, we say 'can't' when the problem is not just one sentence at one moment, but is a more long-term problem. If I understand someone all the time but for one sentence don't follow them then I would say 'I don't understand'. If someone speaks very bad English so they are not able to communicate with me then I would say 'I can't understand them'.


Best wishes,


The LearnEnglish Team


At "Word of the Street", Transport and Travel Scene 2 - Language Focus section, the Task 3 cannot be completed, because I'm "technically" stuck after 5 questions. However, it still states that there are "3 items remaining" and this is not right, because there are only 5 questions in this section and I cannot move forward. Did anyone of you encounter the same situation?

Please advise.

Hello Alinabutnari,

Thanks for reporting this. What's happening is that three of the questions have two correct answers and the exercise counts those as six answers (3 * 2 = 6). The other two questions have one answer and the exercise counts them as two answers. Six answers + two answers = eight answers.

I've changed the instructions so that this is clearer. Could you please try the exercise again to see if you can complete it now?

We're very grateful that you took the time to tell us about this!

All the best,
The LearnEnglish Team

Hello Kirk,

Following your new instructions (and the changes you've made), I had been able to complete the exercise. Thank you very much!

Best regards,

Hello Alinabutnari,

I have checked the task and it appears to be functioning correctly - all five questions are present and can be accessed. Can you tell us if the problem is still occuring for you and, if so, what device and browser you are using to access the site? This may help us to identify the issue.


Best wishes,


The LearnEnglish Team

Hello Peter M,

It's all right now, I've just replied to Kirk. Thank you!

Best regards,

Hello Peter M!
I've got the same problem as Alinabutnari. Task 3 contains 5 questions but after I answered all of them correctly, I got the message "3 items remaining" and % of correct answers was only 63.