Because when you are using are and er your sentences changes completely because they sound different
I have been already seen by her
Answer: So far you are correct but the two words are both cognates and the orthographic accent is not in the English language.
Explanation: Orthographic accents are á, é, í, ó, ú and the English language doesn't use those. Cognates are words that sound the same or are almost the same maybe even sound similar in both languages and have the same meaning .
