Present perfect + while + past simple

The quoted sentence is correct.

I'm not sure what your other question is asking

TommyekDo you know a comprehensive comparison of time clauses?

No, and I doubt you can find one. The number of combinations is so large and so dependent on the exact situation being described by each sentence that I think it might be impossible to assemble anything really comprehensive. About all you can do is remember the general principles and imitate the

It's ungrammatical to use present perfect with specific time reference. Isn't while they were an example of it?

TommyekIt's ungrammatical to use present perfect with specific time reference. Isn't while they were an example of it?

I was afraid you'd ask that.

Thank for your help, boys. "imitate the speaking and writing of native speakers." - words of wisdom. Sometimes, it's difficult to do, especially when a teacher demands a complete grammatical correctness from you.

Tommyekespecially when a teacher demands a complete grammatical correctness from you

Oops! That's a special case, I suppose.

Hi.

The sentence should read as, unusual experience they had while they were with other family members.

Use of past continuous indicates a finished action in the past which is in contrary with concept of present perfect.

So in my opinion, the persent perfect should be changed to past simple to have a correct grammatical structure.

Cheers

hrsaneishould read as, unusual experience they had while they ...

Hmm. That doesn't sound quite right to my ear in the context given. The idea is that it is any experience they may have had at any time from their birth until the present moment, and you need the perfect tense to cover the whole time period.

If I talk about "an experience you had", it

Thank you very much Jim. Your clarification was helpful.

I agree with you.

Thanks

Can I also say while they had been with other family members., if the sentence stand alone?