| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] what [is] [vb pp] [prep] | 341 |
|
| 2 | [verb] [pron] [is] [vb pp] for | 20 |
|
| 3 | [verb] what [be] [vb pp] for | 10 |
|
| 4 | [verb] what [is] [verb] for | 9 |
|
