| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have [been] [verb] | 4625 |
|
| 2 | which have [been] [vb pp] | 4261 |
|
| 3 | [pron] have [been] recognised | 33 |
|
| 4 | which [verb] [been] recognised | 5 |
|
| 5 | which have [be] recognised | 5 |
|
| 6 | which have [been] recognise | 5 |
|
