ate
Make it negative:
I swam in the river.
I didn't swim in the river.
I didn't wrote it.
I didn't write it.
Did you eat ten bananas five minutes ago?
Yes, I did./No, I didn't.
go
went
Make it negative:
I went to Africa last year.
I didn't go to Africa last year.
I goed shopping yesterday.
I went shopping yesterday.
Did they go to the cinema yesterday?
Yes, they did./No, they didn't.
write
wrote
Make it negative:
She ate five pears yesterday.She didn't eat five pears yesterday.
I meeted Lady Gaga last year.
I met Lady Gaga last year.
What time did you get up this morning?
I got up at.....
understand
understood
Make it negative:
They wrote homework together.
They didn't write homework together.
Where do you went yesterday?
Where did you go yesterday?
What did you eat yesterday?
I ate........
teach
taught
He sent a letter to Marilyn last weekend.
He didn't send a letter to Marilyn last weekend.
What did you did last weekend?
What did you do last weekend?
How did you go to school this morning?
I went by.....
I walked......