| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this has [not/n't] [been] | 84 |
|
| 2 | that has [not/n't] [been] | 83 |
|
| 3 | that this has [been] | 30 |
|
| 4 | that this has [not/n't] | 12 |
|
