| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | know what it [be] for | 10 |
|
| 2 | know [Wh det] it [be] for | 10 |
|
| 3 | know [Wh det] it be for | 10 |
|
| 4 | know [Wh det] it [is] for | 9 |
|
| 5 | know [Wh det] it [be] for | 6 |
|
| 6 | know [Wh det] it is for | 5 |
|
