(1) Easy/易
(2) Easy/易
(3) Normal/普
(4) Hard/難
(5) Example/例
10

It rain.

It rained.

10

I jog.

I jogged.

10

I drink water.

I drank water.

10

I do it.

I did it.

10

I dance.

I danced.

20

I walk home.

I walked home.

20

I play game

I played games.

20

I sing a song.

I sang a song.

20

I am here.

I was here.

20

I drive.

I drove.

30

I talk to her.

I talked to her

30

I like English.

I liked English.

30

I run home.

I ran home.

30
I eat sweets.

I ate sweet.

30

I stand here.

I stood here.

40

I watch T.V.

I watched T.V.

40

I enjoy dancing.

I enjoyed dancing.

40

I sit here.

I sat here.

40

I go home

I went home.

40

I sleep.

I slept.

50

I open the door.

I opened the door.

50

The store is close.

The store is closed.

50

I see a movie.

I saw a movie.

50

I read a book.

I read a book

50

I understand.

I understood.