| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] been | 304 |
|
| 2 | to [v-ing] [be] | 48 |
|
| 3 | to [v-ing] be | 48 |
|
| 4 | to [verb] been | 21 |
|
| 5 | to [v-ing] [been] | 13 |
|
