A comparison between "over" and "during" and "throughout"

Question

I would appreciate it if someone could let me know the semantic nuance between the following self-made sentences:

It was a hard time. During this time, we dealt with many hurdles.

For me, it means is some points while we were dealing with the problems.

It was a hard time. throughout this time, we dealt with many hurdles.

For me it means the whole time while we were dealing with the issues.

It was a hard time. Over this time, we dealt with many hurdles.

How one can explain it in a way that I could differentiate this preposition from the other two? It sounds something between the above mentioned prepositions.

P.S. I've already read all the related threads.

Answer 1

1

It was a hard time. During this time, we dealt with many hurdles.

For me, it means is some points while we were dealing with the problems.

2

It was a hard time. throughout this time, we dealt with many hurdles.

For me it means the whole time while we were dealing with the issues.

3

It was a hard time. Over this time, we dealt with many hurdles.

1) This means: Part of the time or much of the time we were dealing with many hurdles.

2) I think you are correct. However, it would be more clear to say "throughout this entire time"

3) This means: Part of the time or much of the time we were dealing with many hurdles.

For me, it means is some points while we were dealing with the problems.

This should read "at some points".