the information on this site is mainly aimed at eu nationals and their families (including family members from non-eu countries).

How would the previous sentence be correctly capitalized?
Answer: The information on this site is mainly aimed at EU nationals and their families (including family members from non-EU countries).
the attached indicator is something like a moving average equivalent that shows the hpf value for a given bar so it won't repaint.

How would the previous sentence be correctly capitalized?
Answer: The attached indicator is something like a Moving Average equivalent that shows the HPF value for a given bar so it won't repaint.
in the evening john's comrade prepared a large bowl of punch, and said, "now let us be merry, and drink to the health of the princess."

How would the previous sentence be correctly capitalized?
Answer: In the evening John's comrade prepared a large bowl of punch, and said, "Now let us be merry, and drink to the health of the princess."
i have not been involved in voluntary work and / or community work in some areas during the past year

How would the previous sentence be correctly capitalized?
Answer: I have not been involved in voluntary work and / or community work in some areas during the past year