| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] what [pers pn] is for | 14 |
|
| 2 | [verb] what [pron] is for | 14 |
|
| 3 | [verb] what [pron] is for | 14 |
|
| 4 | [verb] what it is for | 13 |
|
| 5 | [verb] what it is for | 13 |
|
| 6 | know what [pron] is for | 5 |
|
