Complaint-related expressions

1. I've got a complaint against him.
2. As for me, I'm not satisfied.
3. I'm really sick and tired of my job.
4. It's boring, isn't it.
5. Why are you acting this way.
6. Behave.
7. I'm not satisfied with my grades.
8.
9.

(Are they right? Would you name some more expressions?)

#5 ... needs a question mark at the end.

Possibilities ...
8. Settle down! It's too noisy in here.
9. That loud music is driving me nuts. Please stop it!
10. Stop! I need you to clean up your mess before your dad gets home.

(I could go on and on!!!)

quit messing with my stuff.

;o

Yes, the expressions you provided are common expressions to convey complaints or dissatisfaction. Here are a few more expressions you can use:

1. I have a bone to pick with him.
2. This is unacceptable!
3. I'm fed up with this situation.
4. I can't stand working with him/her anymore.
5. I'm really disappointed with the service/product.
6. This is infuriating!
7. It's not up to my standards.
8. I demand to speak with a manager.
9. This needs to be addressed immediately.

Please note that when expressing complaints, it's essential to be respectful and clear, and try to provide specific details or reasons for your dissatisfaction to facilitate resolution.