| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] has been [v-ing] to | 9 |
|
| 2 | [Wh det] has been [v-ing] to | 9 |
|
| 3 | what has been [v-ing] to | 7 |
|
| 4 | what has been [v-ing] to | 7 |
|
| 5 | [pron] has been happening to | 7 |
|
