| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have to be recognised | 24 |
|
| 2 | have to [be] recognised | 24 |
|
| 3 | have to be recognised | 24 |
|
| 4 | has to [be] recognised | 16 |
|
| 5 | had to [be] recognised | 5 |
|
