Diary - An episode of a TV drama reminded me of

[Tarheel]

Do you mean that when we use a noun phrase, we don’t use the perfect tense?

I didn't say that. What tense you use depends on what you want to say.

 

[Maybo]

I didn't say that. What tense you use depends on what you want to say.

I’ve been asking about the past perfect tense.

Why do we not need to use the past perfect in "An episode of a TV drama I saw recently reminded me of a mistake that one of my former colleagues made."?

However, why do we need to use the past perfect in "Our superior thought it would be too embarrassing to tell the professor that inviting him had been a mistake so we had no choice but to let him come and pay all his costs".

 

[Tarheel]

OK. I'll let someone else answer this one. (I could try, but it would be way too much work for me.)