| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been recognised [prep] some time | 6 |
|
| 2 | have been recognised [prep] some time | 6 |
|
| 3 | have been recognised [prep] some time | 6 |
|
| 4 | have been recognised for some time | 6 |
|
| 5 | have been recognised for some time | 6 |
|
| 6 | has been recognised [prep] some time | 5 |
|
