Qual é a diferença entre frightening e scaring ?Podes indicar apenas respostas exemplo.

Both could mean the same thing but "frightening" also has another meaning.
"Frightening" and "scaring" could mean that someone is causing someone else to be scared. For example:
"You're scaring me." -> "You're frightening me." (Both are correct but we usually use "You're scaring me" more often)
"They were scaring her with a mask" -> "They were frightening her with a mask."

"Frightening" could also be used as an adjective on its own instead of being used as a verb:
- "The whole atmosphere was frightening."
- "Their house is very frightening."