| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [adv] [v-ing] to be | 572 |
|
| 2 | [Wh det] [be] [v-ing] to be | 101 |
|
| 3 | [Wh det] [be] [adv] to be | 78 |
|
| 4 | [Wh det] [be] [adv] [v-ing] to | 39 |
|
