| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [Wh det] be [v-ing] | 1738 |
|
| 2 | [Wh det] be [v-ing] on | 1691 |
|
| 3 | [verb] be [v-ing] on | 420 |
|
| 4 | [verb] [Wh det] be on | 24 |
|
