Correções de frases: Simple Present

Hi Guys,I created a few sentences in the simple present to train a little grammar.
You can checkif the sentences are correct, please?

- Are they a match?
- You are so selfish, stubborn and proud.
- I’m not want taking over the control.
- We are in war.
- My dog is so cute. It is my treasure.
- Shut up!! He wants to study.
- They are in a rough patch
- It is her stuffs.
- Mary and Paul are on a commited relationship.
- He speaks loud.
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My corrections to your sentences are shown below:

- Are they a match for each other?
- You are so selfish, stubborn and proud.
- I don't want to take over full control.
- We are at war.
- My dog is so cute. It is my treasure.
- Shut up!! He wants to study.
- They are in a rough patch.
- It is her stuff.
- Mary and Paul are committed to each other.
- He speaks loud.