| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is put before | 11 |
|
| 2 | is required before | 10 |
|
| 3 | is set before | 7 |
|
| 4 | is brought before | 6 |
|
| 5 | is needed before | 5 |
|
| 6 | is made before | 5 |
|
