"我没有带笔记本。"

Translation: I did not bring my notebook.

[Aleister_Al]

Why is the "I did not bring notebook." is not correct? There is no clearly seen "my" in original sentence.

[Zhou31928]

You need an article so "I did not bring a notebook" could be correct but the "my" is implied here.

[Aleksandro_RU]

Why doesn't Duolingo accept perfect forms? Why is "I haven't brought the notebook" incorrect?

[RobinThor]

And "I have not brought my notebook"

[AndrewVanL2]

That would be 我没有带‘过’笔记本。If the 过 isn't there 9/10 times its not a perfect form sentence.