| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [is] [not/n't] | 1374 |
|
| 2 | [prep] which [is] | 1314 |
|
| 3 | [prep] [is] [not/n't] | 147 |
|
| 4 | [prep] which [not/n't] | 49 |
|
