| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when it be [verb] | 1501 |
|
| 2 | when it be [vb pp] | 1353 |
|
| 3 | [conj] it be discovered | 80 |
|
| 4 | when [pron] be discovered | 37 |
|
| 5 | when it be discover | 31 |
|
| 6 | when it [be] discovered | 31 |
|
