The phrase 'it could change' is correct and usable in written English. This phrase can be used in situations where something could possibly happen, but there is no guarantee that it will. You can use it to suggest that a situation could be different in the future. For example, "The weather has been unpredictable lately, so it could change at any moment."
Or it could change its financing.
It could change tomorrow".
It could change it.
So it could change.
It could change their lives".
And it could change again.
But what if it could change policies?
But it could change everything anyway.
And it could change their votes.
It could change the whole sport.
I knew it could change my life.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.
Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com