| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what it is [prep] [prep] | 48 |
|
| 2 | what it [be] [prep] for | 21 |
|
| 3 | what it be [prep] for | 21 |
|
| 4 | what it [is] [prep] for | 11 |
|
| 5 | what [pers pn] is [prep] for | 8 |
|
| 6 | what [pron] is [prep] for | 8 |
|
| 7 | [pron] it is [prep] for | 7 |
|
| 8 | what it is [prep] for | 7 |
|
