Whenever society is about to go through a dramatic change, ...

[October wind]

This is not a quote. I wrote it myself.
Is this sentence correct?

Whenever society is about to go through a dramatic change, people who want to keep the old system try to prevent it from happening.

 

[probus]

Perfect.

 

[October wind]

Than you so much.

 

[emsr2d2]

Thank you so much.

Please note that I have changed your thread title. Titles should be unique, relevant to the thread, and include some/all of the words/phrases/sentences you're asking us about.

 

[Flask]

This is not a quote. I wrote it myself.
Is this sentence correct?

Whenever society is about to go through a dramatic change, people who want to keep the old system try to prevent it from happening.

I'd change "it" to "the change." Otherwise "it" can momentarily be misunderstood as referring to "the old system."

Alternatively, you could change "prevent it from happening" to "stand in the way."

 

[October wind]

I see. Thank you very much for pointing that out. But doesn’t the context help the reader to understand that “it” means “change,” not the old system? “Prevent the old system from happening” wouldn’t make sense to me. I’d like to know whether it is better to specify “it” to avoid misunderstanding.

 

[Tarheel]

There's only the one sentence. That's not much context.

 

[October wind]

I see. I’ll stick to “the change” then. Thanks a lot for you all for your advice.

 

[tedmc]

How about this?
Whenever society is about to go through a dramatic change, there will be people trying to resist it.

 

[tzfujimino]

I see. I’ll stick to “the change” then. Thanks a lot for you all for your advice.

"Many thanks to you all for your advice."