| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if [adv] required by [art] | 7 |
|
| 2 | if so required by [art] | 7 |
|
| 3 | if [adv] required by [art] | 7 |
|
| 4 | if so required by [art] | 7 |
|
