| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [Wh det] [is] [adv] | 576 |
|
| 2 | [v-ing] [pron] [is] [adv] | 442 |
|
| 3 | [v-ing] [Wh det] [be] [adv] | 143 |
|
