| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [that] i do [not/n't] know | 6 |
|
| 2 | is that i [vb base] [not/n't] know | 6 |
|
| 3 | is [that] i [vb base] [not/n't] know | 6 |
|
| 4 | is [that] i [vb base] n't know | 6 |
|
