The longest word in the English language is the name of a Welsh town.
Can you spell it?
is the answer:
the guess was based on the tags and by how you separated the lines
here is the answer:
Yes... I can spell it. (the question was if I could spell it or not)
Now as to prove it..
t, is how it is spelled.
I'm asked to spell IT, not the longest word in the English language