"It is neither good nor bad."
use "keyboard" and type and copy/paste if necessary.
Nor is used in negative constructions, for the second element of two items. It’s the opposite of or. For example, let’s say both of your sisters, Fay and Rita, are good at tennis. You can say, “Both Fay and Rita are good at tennis.” On the other hand, if they’re bad at it, you say, “Neither Fay nor Rita is good at tennis.” You can also use nor to connect two negative clauses: “I don’t want to go to the grocery store, nor do I want to babysit the kids.” Finally, just like the words “either” and “or” are often paired together: “Either ‘a’ or ‘b’ is correct,” (i.e., they’re both correct, you can choose either one), so the words “neither” and “nor” are paired: “Neither ‘a’ nor ‘b’ is correct,” which means they’re both wrong.
Sean, The ではありません is used for な-adjectives (adjective that mostly does not end with い)¹
For example: あの花はきれいです。 Tha flower is beautiful. あの花はきれいではありません。 That flower is not beautiful.
あの花は小さいです。 That flower is small. あの花は小さくないです。 That flower is not small.
¹ there are some exceptions to this rule as in 嫌い.
VicSantos, ii/yoku seems to be the intended lesson,. Aside from that I checked the English which has only one "is" and your suggestion has "desu" twice. I wonder how much that matters?
I think you might look at your "Iidesu...good", too. Finally, since there is so much to learn on a basic level (i.e. this whole course), I recommend copying/learning Duo's solutions and translations for now, saving creativity for later.