| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [been] [verb] | 37993 |
|
| 2 | had [been] [vb pp] | 31868 |
|
| 3 | have [been] recognised | 175 |
|
| 4 | [verb] [been] recognised | 175 |
|
| 5 | had [been] recognise | 16 |
|
| 6 | [vb past] [been] recognised | 15 |
|
| 7 | had [be] recognised | 15 |
|
