I got up before seven o'clock this morning.
I didn't get up before seven o'clock this morning.
I cooked a cherry pie last weekend.
I didn't cook a cherry pie last weekend.
I could walk when I was one year old.
I couldn't walk when I was one year old.
I walked home from school yesterday.
I didn't walk home from school yesterday.
I wrote my English essay yesterday.
I didn't write my English essay yesterday.
I saw a beautiful bird last summer.
I didn't see a beautiful bird last summer.
I drank a glass of milkshake this evening.
I didn't drink a glass of milkshake this evening.
My teacher gave us lots of homework last weekend.
My teacher didn't give us lots of homework last weekend.
It was hot and sunny yesterday.
It wasn't hot and sunny yesterday.