I wouldn't use the word "discovered" it just seems a bit off. I'd rewrite the sentence with a simpler word yet easy to say and understand: "When we searched the school for damage, a new broken window was found." I hope this helps you. My apologies if this is incorrect.
In this case, we just add the suffix. When we add the suffix to the words ending with consonant, nothing changes. For example, sad + <em>ness </em>= sadness or sad +<em>ly </em>= sadly. When we add the suffix to the words ending with vowel, again there is no change, because the suffix begins with a consonant. For example, state + <em>ment </em>= statement or force + <em>ful </em>= forceful.
Gray wolves disappeared from the Yellow Stone National Park, because when the National Park was built during the early 1800s, 1872 to be exact, Gray wolves were not protected by the park itself, there were no laws to protect these species, which is why hunters, who come across the park, hunts these gray wolves until their population decreased.
-Hope this helps
