What is a hyperbole for a swollen arm?
My arm was so swollen, it looked like a balloon ready to take off into the sky! It felt like I had a whole watermelon strapped to my side, throbbing with every heartbeat. I half-expected it to start rolling away on its own!
What is the comparative and superlative form of difficult?
More difficult and most difficult. With a word that long we don't generally add the -er or -est suffixes.