I fix the problems.
I don't fix the problems.
Do I fix the problems?
Yes, I do.
I invite my friends.
I don't invite my friends.
Do I invite my friends?
No, I don't.
Your computer slows down sometimes.
Your computer doesn't slow down.
Does your computer slow down?
No, it doesn't.
They're going to the park.
I'm not going to the beach today.
Are you going to the party tonight?
He's breaking the eggs for breakfast.
She's not breaking the window.
Is he breaking the rules?
The dog is tearing the newspaper.
They're not tearing the fabric.
Are you tearing the paper for recycling?
She has already finished.
I have just finished.
They have never finished.
Have you ever visited New York City?
No, I have never visited New York City.
Have you ever tried sushi?
Yes, I have tried sushi before.
Have you ever been skydiving?
Yes, I have been skydiving twice.