| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | know what [pron] is [prep] | 48 |
|
| 2 | know what [pron] [be] for | 14 |
|
| 3 | know what [pron] be for | 14 |
|
| 4 | [verb] what [pron] is for | 14 |
|
| 5 | know what [pron] [is] for | 9 |
|
| 6 | know [pron] [pron] is for | 5 |
|
