incorrectly ~ wrong(ly)

[Casiopea]

Now consider a similar structure, "I spelt it incorrectly." What's the difference between,

[1] I spelt it wrong.
[2] I spelt it incorrectly.

Is [3] acceptable? If not, why?

[3] I spelt it wrongly.

[lhn]

Now consider a similar structure, "I spelt it incorrectly." What's the difference between,

[1] I spelt it wrong.
[2] I spelt it incorrectly.

Is [3] acceptable? If not, why?

[3] I spelt it wrongly.

[1] is acceptable, because ''wrong'' is both adjective and adverb. it has to be an adverb in this sentence.

[3] doesn't sound good to me. I prefer to use [1].