| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when it be discovered that [art] | 10 |
|
| 2 | when it be discover that [art] | 10 |
|
| 3 | when it be discover that [art] | 10 |
|
| 4 | when it be discover that the | 7 |
|
| 5 | when it was discover that [art] | 7 |
|
| 6 | when it be discover that the | 7 |
|
