| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [not/n't] [been] recognised | 11 |
|
| 2 | have [not/n't] [been] recognised | 11 |
|
| 3 | [vb -s] [not/n't] [been] recognised | 5 |
|
| 4 | has [not/n't] [been] recognised | 5 |
|
