| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] to | 7229 |
|
| 2 | [vb pp] [v-ing] to | 1271 |
|
| 3 | been [v-ing] to | 634 |
|
| 4 | been [vb pp] [v-ing] | 577 |
|
