| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh adv] [det] [noun] be [v-ing] to | 12 |
|
| 2 | [Wh adv] [det] [noun sg] be [v-ing] to | 7 |
|
| 3 | [Wh adv] [det] be [v-ing] to [noun] | 5 |
|
