Correct sentence: An anglerfish can eat a fish twice its size.
Why this is correct (easy words):
- An is used because "anglerfish" starts with a vowel sound, so we say "an" instead of "a."
- Don't use ALL CAPS. Only the first letter needs to be big at the start of a sentence: "An anglerfish..."
- Its is the right word here — it means "belonging to it." Do not use "it's" (that means "it is").
- "Twice its size" means the other fish is two times as big as the anglerfish, which is a surprising but true fact for some anglerfish!
Another way to say it: An anglerfish can eat a fish twice its own size.
Good job — that sentence was almost perfect!