| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] what [vb -s] to [be] | 13 |
|
| 2 | [v-ing] what [vb -s] [prep] be | 13 |
|
| 3 | [v-ing] what [vb -s] [prep] [be] | 13 |
|
