| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] have been | 2159 |
|
| 2 | have been [prep] | 1532 |
|
| 3 | [not/n't] have [prep] | 1096 |
|
| 4 | [not/n't] been [prep] | 983 |
|
