| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] which [vb mod] [be] present | 10 |
|
| 2 | [noun pl] [Wh det] [vb mod] be present | 10 |
|
| 3 | [noun pl] [Wh det] may [be] present | 6 |
|
