| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [is] [adv] | 8968 |
|
| 2 | [pron] [is] n't | 4471 |
|
| 3 | which [is] not | 1374 |
|
| 4 | which [is] [not/n't] | 1374 |
|
| 5 | which [be] n't | 365 |
|
