I've got five similar sentences that I'd like you guys to check. Below each one I'll write my take on the meaning. Please, tell me if they all are correct and if my understanding of them is correct as well.
- Did you see what they did to our city?
The most basic question, this one is 100% correct and neutral.
- Did you see what they had done to our city?
This is the question I'd pose when someone would return from "our" city to the place we currently live in. It refers solely to the past experience.
- Did you see what they have done to our city?
This is the one that's bugging me. I'm not entirely sure if I can use the present perfect after the past simple without violating the sentence consistency. In terms of the meaning this inquiry focuses on learning whether the subject saw what has been done to "our" city. It's more emotional, as I emphasize the changes that occured to that place. But so does:
- Have you seen what they have done to our city?
So is there any difference between this one and the previous one?
- Have you seen what they did to our city?
And the last one conveys the intention of learning whether the subject of the question saw and was shocked/startled because of the changes in "our" city. The question concentrates mainly on the effect the experience of seeing this place had on the person.
Now, is everything what I said correct and on point? I'd appreciate it if you could also point any grammar mistakes you managed to find - should any appear of course.