How do I defeat Umbridge at the ministry of magic?

[size=12][size=12]Once you know what to do and have before, defeating Umbridge is easy. When you get in, after the short cut-scene showing a person ( From what I remember they're from the Ministry of Magic ) it will immediately start. You won't have much time to swap spells inbetween attacks and it doesn't let you pause, so when you get to the point that a couple more steps and you will be into the battle, equip Expecto Patronum. You'll need to use it alot. So anyway after the cut-scene the battle starts, you'll see that the tied up person has a health bar just like Dolores and yourself. If the tied up person dies, it gets counted as a defeat. All you can really do to attack Dolores is stupefy, just tap near the top of the bottom screen and it shoots toawrd her, taking a bit of her health bar off. She will shoot those green blobs at you, they are incredibly hard to dodge and take ALOT of your health bar off, so when they reach the bottom screen cast Protego to block them out, and that's Umbridge sorted out. Back to the tied up person, while dodging the attacks from Dolores and attacking her in return, Death Eaters will float towards the tied up person, those you need to conjure a Patronus on to push them away from the tied up person- like I already said, if the tied up person dies it counts as Umbridge winning. Long story short, stupefy, protego, patronum. It might take a bit or might not but it worked for me and that's how everyone else says to do it. Also, sorry I kept saying tied up person repeatedly. Hope I helped, now lemme go eat my popcorn.