| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have long been recognised [prep] | 12 |
|
| 2 | [verb] long been recognised [prep] | 12 |
|
| 3 | [vb -s] long been recognised [prep] | 11 |
|
| 4 | has long been recognised [prep] | 11 |
|
| 5 | [verb] long been recognised as | 7 |
|
