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I wish I could edit it, but I can't!

I'm going to write it all again. I wrote it in haste and then did not check it, as my mum had been asking me to help her. Therefore, I made several typing errors. From next time, I'll make sure I go over what I have written before posting it.

Here it goes-

The worst aspect of it is the frustration he has shown at times when things have not been going right.

I have used the present perfect tense twice here with the 'when' clause. Is it ok? If so, how does it differ from the sentence below, which I suspect might not be correct?

The worst aspect of it is the frustration he has shown at times when things are not going right.
hammerman1The worst aspect of it is the frustration he has shown at times when things have not been going right.
...
The worst aspect of it is the frustration he has shown at times when things are not going right.Both are just fine. There is no limit to the number of times you can use the same tense in a single sentence, provided that each use is correct, of course. In the first one, you've just included more time in the period of 'not going right'.

.....[ - - - - - - - - - - - -things have not been going right]..............

[frustration]

........................................[things are not going right]...............

[frustration]

CJ
Students: Are you brave enough to let our tutors analyse your pronunciation?
Thanks again Emotion: big smile

This timeline is a fantastic way of showing the order and the length of the events.

So have I drawn the correct timelines for the first two?

1) The worst aspect of it is the frustration he has been showing when things haven't been going right.

...............[-----------------things have not been going right]

[------------------has been showing frustration]

Happening at the same time..

2) The worst aspect of it is the frustration he has shown at times when things haven't gone right.

....................................[things haven't gone right]......[ frustration]

Frustration shown a little while later.

3) The worst aspect of it is the frustration he has been showing when things have not gone right.

This might be correct. I can't tell.

....................................[things haven't gone right].....[-----------------------been showing frustration]

4) The worst aspect of it is the frustration he has been showing when things are not going right.

I feel this one is wrong, but it might be similar to the 1st one.

Sorry for bothering you.
Yes, it seems you have the basic ideas correct with your timelines.

CJ