"Sakura, you seem to know a lot about the Eight Gates," Tenten asked curiously, "Neji and I were a year ahead of you, and even after spending an extra year with Might Guy, I still don't understand that jutsu fully."
Haruno Sakura smiled confidently, "Have you forgotten about my natural talent for learning ninjutsu? Back in the academy, I could learn a jutsu just by seeing it once."
"So you're the person with incredibly powerful chakra control that Might Guy mentioned! A super! Super! Super~ genius!" Tenten exclaimed in awe, because, in theory, as long as one has high enough chakra control, all ninjutsu can be learned and mastered.
Although chakra has different properties, lacking a specific chakra nature doesn't mean one can't learn associated ninjutsu; it's just that the power won't be as strong as someone who has the specific chakra nature.
Now it looks like Sakura is that kind of genius who turns theory into reality!