| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] for [prep] | 1816 |
|
| 2 | for trial [prep] | 114 |
|
| 3 | [vb pp] for trial | 79 |
|
| 4 | [vb pp] trial [prep] | 13 |
|
