| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] i do n't | 61 |
|
| 2 | is i [vb base] n't | 52 |
|
| 3 | 's i [vb base] n't | 19 |
|
| 4 | [is] i have n't | 10 |
|
