| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been recognised | 175 |
|
| 2 | has [been] recognised | 99 |
|
| 3 | have [been] recognised | 43 |
|
| 4 | had [been] recognised | 15 |
|
| 5 | have [been] recognised | 14 |
|
