| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] long been recognised | 41 |
|
| 2 | have long [been] recognised | 41 |
|
| 3 | has long [been] recognised | 35 |
|
| 4 | [vb -s] long [been] recognised | 35 |
|
| 5 | have long [been] recognised | 5 |
|
| 6 | [vb base] long [been] recognised | 5 |
|
