| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] it be [vb pp] for | 11 |
|
| 2 | [Wh det] it is [vb pp] for | 8 |
|
| 3 | which it be [vb pp] for | 7 |
|
| 4 | [Wh det] it be used for | 5 |
|
