| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] what it [is] for | 22 |
|
| 2 | [verb] what [pers pn] is for | 14 |
|
| 3 | [verb] what [pers pn] 's for | 9 |
|
| 4 | know what [pers pn] [is] for | 9 |
|
| 5 | [vb infin] what [pers pn] [is] for | 8 |
|
| 6 | [vb base] what [pers pn] [is] for | 5 |
|
| 7 | know what [pers pn] [is] for | 5 |
|
