| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [be] use in | 97 |
|
| 2 | may [be] use in | 93 |
|
| 3 | [Wh det] may [be] use | 49 |
|
| 4 | [Wh det] may [be] in | 17 |
|
