| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | once it is [verb] that | 29 |
|
| 2 | once it is [verb] that | 29 |
|
| 3 | once it is [vb pp] that | 29 |
|
| 4 | once it is accepted that | 6 |
|
| 5 | once it is accept that | 6 |
|
